1. Breton: a Celtic language on the Atlantic coast of France
Breton — brezhoneg to its speakers — is the Celtic language of Brittany, the peninsula at the north-western corner of France. It is Indo-European and Celtic, ISO 639-3 bre, Glottocode bret1244.12 Its closest living relatives are Cornish and Welsh, not French: Breton is a Brythonic language carried to Armorica from Britain, and its grammar has almost nothing in common with the Romance language that surrounds it.
That last point is worth pausing on, because it is the single most useful thing an English speaker can know at the start. Breton looks French on the page — Latin alphabet, French loanwords, French place names on the road signs — and behaves nothing like it. Words change their first consonant depending on what stands in front of them. The finite verb wants to be the second thing in a main clause, whatever the first thing is. Prepositions conjugate for person, so 'with me' is one word and 'with her' is another. Counting runs in twenties.
Breton at a glance
| Field | Value |
|---|---|
| English name | Breton |
| Autonym | brezhoneg |
| ISO 639-3 / BCP-47 | bre / br |
| Glottolog | bret12441 |
| Family | Indo-European → Celtic → Brythonic2 |
| Where | Brittany, France — the five departments of Finistère, Côtes-d'Armor, Morbihan, Ille-et-Vilaine and Loire-Atlantique3 |
| Script | Latin. Several competing orthographies; peurunvan (the "zh" system) is the majority written standard4 |
| Speakers | About 107,000, extrapolated from a 2024 regional survey of 8,336 residents in which 2.7% reported speaking Breton "very well" or "quite well"3 |
| Legal status | Not an official language of France. Article 75-1 of the Constitution, added 25 July 2008, states that regional languages belong to the heritage of France5 |
How many people speak Breton, and why the number needs its label
The figure most often quoted is around 107,000. It comes from a TMO survey commissioned by the Brittany Region, which interviewed 8,336 residents by telephone between 30 August and 8 November 2024 and extrapolated from the 2.7% who said they spoke Breton very well or quite well.3 That is a survey estimate of self-reported proficiency across a five-department territory. It is not a census count, and it does not measure how often anyone actually uses the language.
Two other numbers from the same release matter more for understanding where Breton is going. The mean age of speakers was 58.5, down from 70 in the 2018 study — the speaker population is getting younger, which is unusual and significant. And when speakers were asked where they got the language, 16% said family transmission and 78% said education.3 Breton today is overwhelmingly a language people learn at school rather than at home. For the 2025–26 school year the Académie de Rennes reports 9,212 pupils in bilingual public primary streams, 3,285 in middle school and 292 in high school — real numbers, and only a fraction of all Breton learning, since they exclude the Diwan immersion schools, Catholic bilingual streams and every adult course.6
Glottolog's own vitality record for Breton is internally inconsistent: the page shows an AES heading of "not endangered" while the comment it cites reports "At risk" with low certainty from a 2012 source.1 This guide therefore quotes the 2024 survey and declines to attach a single vitality label.
2. The sounds — and why this guide will not hand you one IPA chart
Most language guides open with a phoneme table. This one cannot honestly do that, and the reason is worth understanding because it tells you something real about Breton.
PHOIBLE, the standard cross-linguistic phonological database, holds three separate Breton inventories rather than one. SPA inventory 157 lists 42 segments, sourced to Ternes (1970). UPSID inventory 260 lists 45, from Ternes and Bothorel et al. (1982). EA inventory 2584 lists 66 — and that one is explicitly labelled as the speech of Bothoa, a single locality, analysed by Iosad (2013).7 The Bothoa record is 21 to 24 segments larger than the two general ones. Presenting the union of the three as "the sound system of Breton" would be inventing a language nobody speaks.
Three Breton inventories, three answers
| PHOIBLE record | Scope as labelled | Segments | Source |
|---|---|---|---|
| SPA 157 | Breton (unspecified) | 42 | Ternes 19707 |
| UPSID 260 | Breton (unspecified) | 45 | Ternes 1970; Bothorel et al. 19827 |
| EA 2584 | Bothoa — one locality | 66 | Iosad 20137 |
What can be said safely: Breton descriptions include contrasts of vowel length and/or nasality, though the exact set varies by source; at least one analysis includes aspirated stops; the Bothoa analysis includes several voiceless sonorants.7 Beyond that, the responsible move is to pick a variety, name it, and use audio recorded by speakers of that variety. The Office public de la langue bretonne's Desketa platform, launched June 2024, covers A0–A1 with audio recorded by experienced speakers, and is the sensible starting point.8
Spellings you can rely on without a phoneme chart
A handful of grapheme facts hold across the standard orthography and will get you reading aloud passably:
- c'h is a single letter — the raspy velar or uvular fricative, as in bac'h. It is not c followed by h.
- zh is the letter that gives peurunvan its nickname. It was designed as a compromise spelling for a sound realised as /z/ in most of Brittany and /h/ in Vannetais, so that one spelling could serve both: brezhoneg.
- ñ marks nasalisation of the preceding vowel, not a palatal nasal: kreñv, teñval.
- ou is /u/, as in French; eu is a front rounded vowel; ao and aou are diphthongs.
- Stress in most of Brittany falls on the penultimate syllable. Vannetais is the notable exception, stressing the final.
3. Which Breton spelling? The orthography question, stated honestly
Breton has more than one writing system, and the difference is visible in almost every sentence. ARBRES, the CNRS-hosted research grammar edited by Mélanie Jouitteau, describes several coexisting orthographies and identifies the zh system — peurunvan, "wholly unified" — as the majority written standard of the twenty-first century.4 This guide and its deck use peurunvan throughout, and say so rather than leaving you to infer it.
Breton orthographies you will actually encounter
| System | Nickname | What you will see |
|---|---|---|
| Peurunvan | KLTG, "zh" | brezhoneg, dilhad, selloutzh where the dialects split z ~ h; the majority written standard4 |
| Skolveurieg | "university" spelling | brezoneg, dillad, selled — a separate mid-century standard, still visible in print and in Wiktionary entries |
| Etrerannyezhel | "interdialectal" | a later attempt at a compromise system; less common in print |
| Pre-reform | — | beo for bev, dég for dek, eun for unan — you meet these in older books |
Two rules follow, and they are the ones ARBRES itself applies. First, declare your system and stay in it. Second, do not mark a form from another documented system as a mistake — brezoneg is not a misspelling of brezhoneg, it is the same word in a different orthography.4 Dialect transcriptions in particular may depart from the base spelling in order to preserve information, and normalising them silently destroys the data.
Reader A1 — Un devezh e Breizh (A day in Brittany)
Constructed for this guide from the words on the deck below. It is a practice text, not a Breton literary work; section 9 lists real Breton writing to move on to.
. Me a zo Yann. Yann eo ma anv. Breizhad on. E Breizh emaon o , en un ti e-kichen ar . eo ar , ha eo. e sellan ar . e klevan ar . Ur c'hi am . eo ma c'hi, ha du eo. Trewa... , brezhoneg eo se. Ki eo ar . Ma c'hi a zo ur c'hi bihan ha du, ha me a anezhañ.
— Hello. I am Yann. Yann is my name. I am a Breton. I live in Brittany, in a small house beside the sea. The sea is big, and it is blue. Every day I look at the sea. Every day I hear the wind. I have a dog too. My dog is small, and it is black. Trewa... no, that is not Breton. Ki is the Breton word. My dog is a small black dog, and I love him.
Er e savan. ha am bez. eo ar . eo ar . Goude e vont er-maez ma c'hi. ez eus ur , ha an tu eus ar ez eus ul . El e vez gwez ha ha bleunioù. Un a nij a-us d'an ti. Un erer eo, pe ur gwalc'h? Ne ouzon ket. Uhel-tre eo, ha ne welan ket mat.
— In the morning I get up. I have bread and coffee. The bread is good. The coffee is hot. Then I go outside with my dog. Here there is a long hedge, and on the other side of the hedge there is a garden. In the garden there are trees and grass and flowers. An eagle flies high above the house. Is it an eagle, or a hawk? I don't know. It is very high, and I can't see well.
D'abardaez e teuan d'ar gêr. a ra ma c'hi war al . Ul am eus, ha a ran. Ur am eus ivez, ne ouzon ket an c'herioù . Bemdez e lennan un , ha bemdez e skrivan gerioù en ul bihan. eo ar yezh-mañ, eo ivez. e soñjan: perak e teskan brezhoneg? eo ar yezh, ha amañ emaon o chom. Ur yezh a zo ur skeud eus ur vro. Ma fell anavezout Breizh, deskit brezhoneg. e teskin gerioù . ez an da gousket. Nozvezh vat!
— In the evening I come home. My dog sleeps on the floor. I have a book, and I read. I have a dictionary too, because I don't know all the words yet. Every day I read a little, and every day I write new words in a small book. This language is difficult, but it is enjoyable too. Often I think: why am I learning Breton? Because the language is beautiful, and because I live here. A language is a reflection of a country. If you want to know Brittany, learn Breton. Tomorrow I will learn new words again. Now I am going to sleep. Good night!
4. Initial consonant mutation: the thing that makes Breton Breton
The first consonant of a Breton word changes according to what precedes it. This is not decoration and it is not optional. ARBRES defines it as a change affecting a word-initial consonant and documents several distinct series rather than one uniform softening.9 Its standard table covers initial K, T, P, G, D, B, M and Gw, and distinguishes lenition, spirantization, provection (fortition), the mixed mutation and a reduced system.9
The standard mutation table, after ARBRES9
| Radical | Lenition (soft) | Spirantization (aspirate) | Provection (hard) |
|---|---|---|---|
| k | g | c'h | — |
| t | d | z | — |
| p | b | f | — |
| g | c'h | — | k |
| d | z | — | t |
| b | v | — | p |
| m | v | — | — |
| gw | w | — | kw |
Learn mutation by trigger, one construction at a time — not as a list of letter swaps. ARBRES is explicit that mutation is sensitive to lexical category and morphosyntactic environment, which means a vocabulary item cannot be taught with a single decontextualised "changed form".9 This is exactly why the deck for this guide carries kador and not gador, kar and not gar: the mutated spellings are grammar output, not separate words.
Three triggers to start with
- The possessive da 'your' lenites: ki → da gi 'your dog'; tad → da dad 'your father'.
- The possessive ma 'my' spirantises: ki → ma c'hi 'my dog'; tad → ma zad 'my father'; penn → ma fenn 'my head'.
- The definite article lenites a feminine singular noun: ar + kador → ar gador 'the chair'.
That third one is why the article has three shapes to begin with. an stands before n, d, t, h and vowels; al before l; ar everywhere else. The same three-way split governs the indefinite article: un, ul, ur.
5. Being, having, and introducing yourself
Breton's verb 'to be', bezañ, has more than one present tense, distributed by what the sentence is doing — identity, location, habit. A first course does not need the whole system, but it does need to know the system exists, so that the forms below look like members of a paradigm rather than random words.
Ten sentences that will carry you through a first conversation
| Breton | English |
|---|---|
| Me a zo Yann. | I am Yann. (identifying, subject fronted) |
| Yann eo ma anv. | Yann is my name. |
| Breizhad on. | I am a Breton. |
| E Breizh emaon. | I am in Brittany. (location — a different form of 'be') |
| Ur c'hi am eus. | I have a dog. (literally 'a dog is at me') |
| N'am eus ket a gi. | I don't have a dog. |
| Petra eo da anv? | What is your name? |
| Pelec'h emaoc'h o chom? | Where do you live? |
| Ne gomzan ket mat. | I don't speak well. |
| Ur banne dour, mar plij. | A glass of water, please. |
Note the negation. Breton negates with a pair: ne before the verb and ket after it, exactly as French does with ne … pas. Before a vowel ne becomes n'. The deck carries both halves as separate cards for this reason.
Reader A2 — Ar marc'had (The market)
Constructed for this guide from the words on the deck below. It is a practice text, not a Breton literary work; section 9 lists real Breton writing to move on to.
ez is d'ar ma Anna. Er ez a draoù: , , , , . Ez krampouezh — krampouezh eo an dra ar muiañ brudet e Breizh. Ur grampouezhenn am prenet. Mat-tre e oa. Anna he deus prenet div grampouezhenn, rak naon he doa.
— Yesterday I went to the market with my friend Anna. At the market there are lots of things: bread, meat, fruit, salt, coffee. There are also crêpes — crêpes are the most famous thing in Brittany. I bought a crêpe. It was very good. Anna bought two crêpes, because she was hungry.
Ur wreg gozh a werzhe frouezh. « , » emezi. « , » a lavaris. « Pegement eo ar frouezh? » « euro, » a lavaras. euro! Ker eo, a soñjis, a ris anezho memes . e oant. Goude-se eus kavet un , e oa ur c'hrampouezher o labourat e-.
— An old woman was selling fruit. "Hello," she said. "Hello to you," I said. "How much is the fruit?" "Five euros," she said. Five euros! That's expensive, I thought, but I bought them all the same. They were good. After that we found a crêperie, and there was a crêpe-maker working inside.
c'his d'ar gêr e komzomp brezhoneg. Anna a gomz gwelloc'h egedon. e brezhoneg gant he zad hag he ; me ne gomzan nemet er skol. e chomomp gerioù, hag e komzomp un . Goude-se e komzomp brezhoneg . « Ne vern, » a lavaras Anna. « a rez , hag ar re a zesk a gomzo un deiz. Ma ne oa bet er skol, ha brezhoneg a gomze. Te a zo bet er skol, hag e komzi ivez. » a ra anezhi. ez in d'ar marc'had , ha prenañ a rin frouezh ha bara ha . Ha marteze e komzin brezhoneg gant ar wreg gozh a werzh frouezh, ha ne gomzin outi. Un dra vihan eo. Met eus an traoù -se e vev ur yezh.
— On our way home we speak Breton. Anna speaks better than I do. Every day she speaks Breton with her father and her mother; I only speak it at school. Often we run out of words, and we speak a bit of French. Then we speak Breton again. "Never mind," said Anna. "You learn every day, and those who learn every day will speak one day. My grandmother had never been to school, and she spoke Breton. You have been to school, and you will speak too." I want to believe her. Tomorrow I will go to the market again, and I will buy fruit and bread and crêpes. And perhaps I will speak Breton with the old woman who sells fruit, and I will not speak French to her. It is a small thing. But it is on small things like these that a language lives.
6. Where the verb goes: V2, and why "Breton is VSO" is wrong
You will read that Breton is a VSO language. You will also read that it is V2. ARBRES's position is that neither works as a context-free summary: it analyses Breton main clauses as predominantly V2, with the finite or tense-bearing element in second position and the first constituent free to be something other than the subject, while embedded clauses are frequently VSO.10 The distinction is between clause types, not between analysts.
The practical consequence for a learner is that the first slot in a Breton main clause is a choice, and the choice carries meaning. UD Breton-KEB, the manually annotated dependency treebank of 884 sentences and 9,725 tokens, contains a pair that shows this cleanly.11
Attested word-order examples from UD Breton-KEB. These are corpus records, not sentences written for this guide.
| Attested sentence | Corpus id | First constituent | Corpus translation |
|---|---|---|---|
| Me a yelo d'ar pardon. | grammar.vislcg.txt:8:182 | Me — the pronoun | "I'll be going to the 'pardon'."11 |
| Mont a rin d'ar pardon. | grammar.vislcg.txt:9:199 | Mont — the verbal noun | "I'll be going to the 'pardon'."11 |
| Ar mab a welas ar plac'h yaouank. | grammar.vislcg.txt:1:0 | Ar mab — the subject | "The son saw the young woman."11 |
| Lavaret em eus deoc'h e oa Janed. | grammar.vislcg.txt:5:103 | Lavaret — the past participle | "I told you it was Janed."11 |
The corpus gives Examples 1 and 2 the same English translation while their first constituents differ, which makes them a useful attested pair for investigating what the front slot actually does. A complete information-structure account would need the original grammatical source and the discourse context, and this guide does not have those.11 What it can say is that the fourth sentence shows an embedded clause introduced by e with its own verb oa — the pattern ARBRES describes as frequently VSO.10
The ober periphrasis
The second and fourth examples above use a construction with no English equivalent. Mont a rin is literally "going I-will-do": the verbal noun is fronted and the tense is carried by ober 'to do' as an auxiliary. Wiktionary records this second function of ober explicitly — "used as an auxiliary verb to conjugate any verb".12 It is extremely common in speech, and recognising it is the difference between parsing ordinary Breton and being stopped by it.
7. Conjugated prepositions
Breton prepositions inflect for the person of their object. There is no English analogue at all; the closest familiar thing is Irish or Welsh. The deck carries the full paradigm of two of them as separate cards, because that is how you will meet them.
Two conjugated prepositions in full
| Person | da 'to' | 'with' |
|---|---|---|
| 1sg | ||
| 2sg | ||
| 3sg m. | ||
| 3sg f. | ||
| 1pl | ||
| 2pl | ||
| 3pl |
8. Counting in twenties
Breton counts vigesimally above twenty, like Welsh and unlike English. Forty is daou-ugent, "two twenties"; sixty is tri-ugent; eighty is pevar-ugent. Fifty is hanter-kant, "half a hundred". Numbers between the twenties use warn-ugent: unan warn-ugent 'twenty-one'.
Breton also has gendered forms for 2, 3 and 4, agreeing with the noun counted: daou/div, tri/teir, pevar/peder. And eighteen is triwec'h, "three sixes" — a genuinely vigesimal-adjacent oddity that surprises people.
Reader B1 — Ar fest-noz (The night dance)
Constructed for this guide from the words on the deck below. It is a practice text, not a Breton literary work; section 9 lists real Breton writing to move on to.
Ar fest-noz a zo un dra vev e Breizh, ha n'eo un dra hepken. Bep bloaz e vez dalc'het fest-noz pe ouzhpenn, e teu tud a bep seurt: re , re gozh, tud ar vro ha tud a-ziavaez. Er bloavezh 2012 e voe lakaet ar fest-noz roll UNESCO an hêrezh sevenadurel divaterel. N'eo ur mirdi eta: eo, e cheñch bep bloaz.
— The fest-noz is a living thing in Brittany, and not merely an old one. Every year a thousand fest-noz or more are held, and people of every kind come: the young, the old, people from the region and people from outside. In 2012 the fest-noz was inscribed on the UNESCO Representative List of the Intangible Cultural Heritage of Humanity. It is not a museum, then: it is alive, and it changes every year.
a c'hoarvez en ur fest-noz? Sonerien a son, kanerien a gan, ha an a zañs. e vez ganer o an goude egile — a gan ul lodenn, hag egile a adkan anezhi. ha diskan eo anv an doare-se. Ne vez ket ezhomm da vezañ mestr war an dañs: a rit e- ar boullad, a rit, ha desket e vez an hag ar c'horf kentoc'h al levrioù.
— What happens at a fest-noz? Musicians play, singers sing, and everyone dances. Often two singers sing one after the other — one sings a phrase, and the other sings it back. Kan ha diskan is the name of that style. You don't need to be a master of the dance: you go into the circle, you begin, and it is learned with the hand and the body rather than with books.
Ar pezh a zo dedennus eo an dra-mañ: en un fest-noz e vez klevet brezhoneg gant tud ha n'o deus ket desket anezhañ er gêr. Ur yezh a vev el lec'h ma vez implijet, ha unan eus al lec'hioù ma vez implijet . Ur fest-noz n'eo ket ur c'hentel, ha n'eo ket ur skol. Tud a zeu evit , ha a reont etrezo. a rit brezhoneg en ho tro, ha n'eo ket brezhoneg al levrioù: brezhoneg ar vuhez eo. Mard oc'h o teskiñ brezhoneg hag e c'hallit mont d'ur fest-noz, it. Ne gomprenot ket pep . Ne vern. Selaouit, ha dañsit, hag e teuio ar gerioù goude.
— What is interesting is this: at a fest-noz you hear Breton spoken by people who did not learn it at home. A language lives where it is used, and this is one of the places where it is still used. If you are A fest-noz is not a lesson, and it is not a school. People come to dance, and they talk among themselves. You hear Breton around you, and it is not the Breton of books: it is the Breton of life. If you are learning Breton and you can get to a fest-noz, go. You will not understand everything. Never mind. Listen, and dance, and the words will come afterwards.
9. The four countries, and what a dialect label does not tell you
Breton is conventionally divided into four dialects named after the historic bishoprics: Kerne (Cornouaille), Leon, Treger (Trégor) and Gwened (Vannetais). The first three are grouped as KLT and are the basis of most written standards; Gwened is the outlier, with different stress placement and enough divergence that the peurunvan zh compromise was designed largely to bridge it.
What a four-way label hides is how much geographic variation is actually documented. ARBRES's account of the Atlas linguistique de la Basse-Bretagne identifies Pierre Le Roux's six-volume atlas, published 1924–1953 with about 100 maps per volume, as the major source for twentieth-century Breton dialectology; the CNRS/CRBC ichthyonymy project records that the ALBB surveyed 77 points and that Jean Le Dû's later Nouvel atlas linguistique de la Basse-Bretagne expanded coverage to 187.13 Those are field records with dates and survey points attached — and a form mapped in 1930 is evidence about 1930, not about how anyone speaks now.13
10. Collective and singulative nouns
Breton does something with number that English does not. For many natural kinds the unmarked form is a collective, and you derive the single item from it by adding -enn. This is the reverse of the English pattern, and it is one of the genuinely delightful corners of the grammar.
Collectives and their singulatives — both members are on the deck
| Collective | Singulative | Gloss |
|---|---|---|
| crêpes → one crêpe | ||
| mice → one mouse | ||
| foliage → one leaf | ||
| grass → one blade of grass | ||
| bees → one bee | ||
| nuts → one nut | ||
| acorns → one acorn | ||
| clouds → one cloud | ||
| fruit → one fruit | ||
| sand → a grain of sand; a beach |
The deck carries both members of each pair deliberately. Reducing them to one card would throw away the fact that makes them worth learning.
Reader B2 — Ar yezh hag ar skol (The language and the school)
Constructed for this guide from the words on the deck below. It is a practice text, not a Breton literary work; section 9 lists real Breton writing to move on to.
Ma sellit ar sifroù ar studiadenn sokioyezhoniel 2024, e welit un dra souezhus. 2018 ha 2024 eo bet izeloc'h oad keitat ar gomzerien: vloaz ha betek vloaz ha . Er ar yezhoù en arvar e sav an oad keitat bep bloaz, ar re goshañ hepken a o . eo bet ar c'hontrol.
— If you look at the figures from the 2024 sociolinguistic study, you see something surprising. Between 2018 and 2024 the mean age of speakers fell: from seventy years to fifty-eight and a half. In most endangered languages the mean age rises every year, because only the oldest keep speaking. Here it has been the opposite.
Perak? Rak ar skol. Eizh a bep dek komzer a lavar o deus desket brezhoneg er skol, ha dre ar familh hepken. Ur cheñchamant eo. E-pad kantvedoù e oa bet treuzkaset ar yezh an tadoù ar mammoù; e vez treuzkaset ar gelennerien. An dra-se a sav goulennoù start: ur yezh a vev-hi pa vez desket er skol ha n'eo komzet er gêr?
— Why? Because of the school. Eight out of every ten speakers say they learned Breton at school, and sixteen per cent through the family alone. It is a profound change. For centuries the language was transmitted by fathers and mothers; now it is transmitted by teachers. That raises hard questions: does a language live when it is learned at school and not spoken at home?
N'eus a c'hallfe respont d'ar goulenn-se . Ar pezh a c'haller lavarout eo n'eo ket ar brezhoneg, ha n'eo ket yac'h kennebeut. eo dre ar skolioù, dre ar radio, dre an Ti Embann, dre ar festoù-noz. eo lavarout a c'hoarvezo a-benn vloaz. Un dra a c'haller lavarout koulskoude: n'eo ket ar memes ur yezh desket er skol hag ur yezh klevet er gêr abaoe ar bugaleaj. Ar re a zesk er skol o deus gerioù ha yezhadur; ar re a glev er gêr o deus tonioù ha troioù-lavar ha a draoù ne vezont ket skrivet e . Ezhomm ez eus eus an . Ar pezh a zo sur eo an dra-mañ: pep hini a zesk brezhoneg a zo ul lodenn eus ar respont.
— Nobody can answer that question today. What can be said is that Breton is not dead, and it is not healthy either. It is alive through the schools, through the radio, through the publishing house, through the fest-noz. It is difficult to say today what will happen in fifty years. One thing can be said all the same: a language learned at school and a language heard at home since childhood are not the same thing. Those who learn at school have words and grammar; those who hear it at home have tunes and turns of phrase and a great many things that are written in no book at all. Both are needed. What is certain is this: everyone who learns Breton is part of the answer.
11. Reading Breton critically: where the descriptions come from
At an advanced level the useful skill is no longer learning new forms but knowing what kind of evidence a claim about Breton rests on. The sources behind this guide fall into four distinct tiers, and conflating them is the most common failure in Breton material online.
Four evidence tiers, and what each is good for
| Tier | Example | What it can and cannot settle |
|---|---|---|
| Peer-reviewed / research grammar | ARBRES topic pages; Press, A Grammar of Modern Breton (Mouton de Gruyter, 1986, DOI 10.1515/9783110884975)14 | Can settle grammatical analysis. ARBRES must be cited by individual topic page, not generically.9 |
| Annotated corpus | UD Breton-KEB, 884 sentences, CC BY-SA 4.011 | Can settle that a structure is attested. Cannot settle frequency or discourse conditions from one record. |
| Institutional | Office public de la langue bretonne — TermOfis, Desketa, thematic lexicons8 | Authoritative for current official terminology. TermOfis is a terminology database, not a frequency-ranked general dictionary. |
| Reference / community-edited | English Wiktionary via kaikki.org — the source of this guide's deck12 | Good enough to learn from. Not good enough to cite in a grammar. |
The deck attached to this guide sits squarely in the fourth tier and says so. It also carries a visible gap that illustrates the discipline: it has no card for kazh 'cat', kêr 'town', bugel 'child' or skol 'school', because the specific Wiktionary range pages holding those words were not among the ones harvested for this build. Those words are real Breton and you will meet them immediately. They are absent because the deck carries only what was actually read from a source, and a later harvest will add them.
Register: the peurunvan question is partly political
Choosing an orthography in Breton has never been a purely technical act. The peurunvan system was agreed in 1941, under the German occupation, and that history has attached to it ever since; Skolveurieg was in part a post-war response. ARBRES's own practice is instructive: it uses peurunvan as a transcription base while explicitly allowing adaptation where dialect data require it, and it describes the zh system as the majority written standard rather than as the correct one.4 That is the register this guide adopts — describe the distribution, decline the verdict.
Reader C1 — Doare ar skrivañ (The manner of writing)
Constructed for this guide from the words on the deck below. It is a practice text, not a Breton literary work; section 9 lists real Breton writing to move on to.
N' un doare hepken da brezhoneg, an dra-se a zo ur gudenn ur pinvidigezh un dro. Ar reizhskrivadur peurunvan a zo ar reizhskrivadur muiañ implijet er c'hantved-mañ, hervez ARBRES. n'eo ar reizhskrivadur nemetañ, ha n'eo bet asantet an . Skolveurieg a zo ; etrerannyezhel a zo .
— There is not one single way of writing Breton, and that is a problem and a richness at the same time. The peurunvan orthography is the most used orthography in this century, according to ARBRES. But it is not the only one, and it has not been agreed to by everyone. Skolveurieg is another; interdialectal is another again.
Perak eo pouezus an dra-se an neb a zesk? pa lennit ul e welit brezoneg e-lec'h brezhoneg, dillad e-lec'h , selled e-lec'h . N'eo ket fazioù. Skrivadurioù eus ur reizhskrivadur all . Ma soñjit e vez fazioù, e kollit an : ne ouzoc'h ket eus e teu an destenn nag eus peseurt mare.
— Why does this matter for the learner? Because when you read an old book you see brezoneg instead of brezhoneg, dillad instead of dilhad, selled instead of sellout. These are not errors. They are spellings from a different orthography. If you think they are errors, you lose the information: you no longer know where the text comes from or from what period.
ar reolenn a heuilhomp , ha hi eo ar reolenn a heuilh ARBRES . Dibabit ur reizhskrivadur. Lavarit pehini eo. Chomit e-. Ha pa gavit ur stumm eus ur reizhskrivadur all, na lakait ket ur sin warnañ — merkit eus pelec'h e teu. Ar yezhoniezh a zo ur skiant, ha n'eo ket ur skol-veur ma vefe roet notennoù. Un dra all c'hoazh: n'eo ket bet dibabet ar reizhskrivadurioù-se en un doare sioul. o deus, hag start a-wechoù. Ar peurunvan a voe asantet e-pad ar brezel, hag an dra-se a stag outañ betek . An neb a zesk brezhoneg a c'hall peurunvan asantiñ d'an -se. Met gwelloc'h eo .
— Here is the rule we follow here, and it is the rule ARBRES follows too. Choose an orthography. Say which one it is. Stay inside it. And when you find a form from another orthography, do not put a red mark on it — note where it comes from. Linguistics is a science, and not a university where marks are handed out. One more thing: these orthographies were not chosen in a calm way. They have a history, and sometimes a hard one. Peurunvan was agreed during the war, and that stays attached to it to this day. Someone learning Breton can choose peurunvan without agreeing to that history. But it is better to know than not to know.
12. Books, magazines, radio, television and music in Breton
Breton has a real contemporary media ecosystem — small, but genuinely functioning, and the fastest route from classroom Breton to the language as it is used. Everything below publishes or broadcasts in Breton.
Breton-language media
| Kind | Name | Note |
|---|---|---|
| Newspaper | Ya! | Weekly, entirely in Breton; among the most-cited Breton-language publications15 |
| General magazine | Bremañ | Monthly general-interest magazine in Breton15 |
| Literary magazine | Al Liamm | The principal literary review; long-running, and where much modern Breton prose and poetry first appears15 |
| General magazine | Al Lanv | Based in Quimper; four issues a year15 |
| Children's | Louarnig-Rouzig | Children's magazine in Breton15 |
| Television | Brezhoweb | The first web television broadcasting exclusively in Breton1516 |
| Television | France 3 Breizh / France 3 Iroise | Breton-language programming within regional public television15 |
| Radio | France Bleu Breizh Izel (now Ici Breizh Izel) | Public service radio in Lower Brittany with Breton-language programming1517 |
| Radio | Radio Kerne, Radio Kreiz Breizh, Radio Bro Gwened, Arvorig FM | Associative stations broadcasting in Breton15 |
| Publisher | Al Liamm; Skol Vreizh; An Alarc'h | The main Breton-language book publishers |
Music, and the one thing everybody should hear
Breton music is the part of the culture with the widest reach, and much of it is sung in Breton. The traditional repertoire divides into the gwerz — a long narrative ballad, usually tragic — and the sonenn, a shorter and lighter song. For the dance, the characteristic form is kan ha diskan, call-and-response singing in which one singer sings a phrase and a second overlaps and returns it.
The living context for all of it is the fest-noz, inscribed in 2012 on the UNESCO Representative List of the Intangible Cultural Heritage of Humanity.18 UNESCO's own description is worth quoting because it documents scale, not just sentiment: about a thousand fest-noz take place every year, with participants ranging from a hundred to several thousand, thousands of musicians and singers, and tens of thousands of regular dancers, drawing on inherited dance repertoires with several hundred variations and thousands of tunes.18 Bagadoù — Breton pipe bands, from bagad — compete and perform across the region.
Reader C2 — Ar gwerz hag ar sonenn (The gwerz and the sonenn)
Constructed for this guide from the words on the deck below. It is a practice text, not a Breton literary work; section 9 lists real Breton writing to move on to.
seurt a zo er sonerezh hengounel breizhat, ha - an diouzh egile. Ar gwerz a zo un , ur c'hontadenn kanet: e ar , ar , ur vaouez a gollas he bugale, un a chomas er-maez ar vro. eo ar gwerz, ha . N' ezhomm da vezañ mestr ar yezh se: an ton hepken a lavar deoc'h eus petra e vez komzet.
— There are two kinds of song in traditional Breton music, and they are very different from one another. The gwerz is a long story, a sung narrative: often it speaks of death, of the sea, of a woman who lost her children, of a man who stayed outside the country. The gwerz is sad, and heavy. You do not need to be a master of the language to hear that: the tune alone tells you what is being spoken of.
Ar sonenn a zo un dra . Berroc'h eo, skañvoc'h eo, ha da zañsal e vez implijet alies. an daou emañ ar c'han ha diskan: daou ganer a gan an eil goude egile, a lavar ul lodenn egile a adkan anezhi, e vez dalc'het ar boullad o tañsal an daou. Un doare eo ha n'eus ket ezhomm a benveg outañ — an dud hepken a ra ar sonerezh o .
— The sonenn is another thing. It is shorter, it is lighter, and it is often used for dancing. Between the two stands kan ha diskan: two singers sing one after the other, one says a phrase and the other sings it back, and the circle is kept dancing by the pair of them. It is a manner of singing that needs no instrument at all — the people alone make the music with their voices.
Perak eo pouezus an dra-se evit an neb a zesk ar yezh? e vev ar brezhoneg goulenn digant . Er skol e vez desket ar gerioù hag ar yezhadur; er sonerezh e vez klevet ar yezh o labourat. Selaouit ur gwerz ar gerioù. Ne gomprenot ket pep ar wech , na d'an eil wech kennebeut. un deiz e teuio ur ha goude-se ur frazenn, hag e komprenot penaos e c'hall ur yezh vihan . Ur yezh vihan a zo dre an niver hepken. Er sonerezh n'eus yezh vihan ebet.
— Why does this matter for someone learning the language? Because here Breton lives without asking anyone's permission. At school the words and the grammar are learned; in the music the language is heard at work. Listen to a gwerz without reading the words. You will not understand everything the first time, nor the second time either. But one day a word will come, and after that a sentence, and you will understand how a small language can be a large one. A small language is small by numbers alone. In the music there is no small language.
12b. Adalek an deroù betek an dibenn — the whole guide, in Breton
Everything this guide has argued, restated in Breton, one paragraph per CEFR level, with the English underneath. If you can read this section without the captions, you have got what the guide was for.
A1 — Petra eo ar brezhoneg?
Ar brezhoneg a zo ur yezh keltiek, ha n'eo ket ur yezh latin. Ar a zo tro-dro , met n'int ket an eil d'egile. eo ar brezhoneg d'ar c'hembraeg ha d'ar c'hernaoueg. dra a rank souezh diouzhtu: a ra kensonenn gentañ ar gerioù hervez ar pezh a zo a-raok; an araogennoù a vez displeget hervez an den; ha kontañ a reer dre ugentadoù. Un den war-dro ha a lavar e komz brezhoneg pe , hervez ar studiadenn 2024.
— Breton is a Celtic language, and not a Latin one. French is all around it, but they are not related to each other. Breton is related to Welsh and to Cornish. Three things ought to surprise you straight away: the first consonant of words changes according to what stands before it; prepositions are conjugated for person; and counting is done in twenties. About 107,000 people say they speak Breton well or well enough, according to the 2024 study.
A2 — Ar c'hemmadurioù
Ar c'hemmadur a zo ar yezhadur . N'eus ket un doare hepken da gemmañ: bez' ez eus meur a rummad — blotaat, c'hwezhañ, kaletaat, hag all. Ne rankit ket ar rummadoù ur roll lizherennoù. Deskit anezho dre ar gerioù a zegas anezho: ma a c'hwezh, da a vlota, hag an ar-mañ a vlota un anv unan. Ur ger kemmet n'eo ket ur ger : eo gador, ha ki eo ma c'hi ha da gi.
— Mutation is the heart of Breton grammar. There is not one single way of mutating: there are several series — lenition, spirantization, provection, and so on. You should not learn the series as a list of letters. Learn them through the words that trigger them: ma spirantises, da lenites, and the article lenites a feminine singular noun. A mutated word is not a new word: gador is kador, and ma c'hi and da gi are ki.
B1 — Lec'h ar verb
Lavaret e vez a-wechoù ez eo VSO ar brezhoneg, ha lavaret e vez a-wechoù all ez eo V2. Diouzh ARBRES n'eo mat hini ebet eus an daou evel diverradenn hep kaozeadenn. Er frazennoù pennañ e vez ar verb displeget en eil lec'h, ha n'eo ket d'an dra gentañ bezañ ar rener; er frazennoù isurzhiet e vez VSO alies. An dra gentañ er frazenn a zo un , hag an -se a zo ur ster . perak eo talvoudus da welout Me a yelo d'ar pardon ha a rin d'ar pardon an eil e-kichen egile.
— It is sometimes said that Breton is VSO, and sometimes said that it is V2. According to ARBRES neither works as a summary without discussion. In main clauses the finite verb stands in second position, and the first element does not have to be the subject; in subordinate clauses it is often VSO. The first thing in the sentence is a choice, and that choice carries meaning. That is why it is worth seeing Me a yelo d'ar pardon and Mont a rin d'ar pardon side by side.
B2 — Stroll ha unander
Un dra a ra ar brezhoneg ha ne ra ket ar saozneg: evit meur a dra eo ar stumm boutin ur stroll, hag e vez graet an unander diwarnañ en ur -enn. a zo , ha a zo unan hepken. a zo an zelioù war ar wezenn, ha a zo unan. Er saozneg emañ an dra d'an tu all: leaf a zo kentañ, ha leaves a zeu goude. Setu perak emañ an stumm war ar roll gerioù: mard e lakaer unan hepken e vez kollet ar pezh a zo dedennus.
— Breton does something that English does not: for many natural kinds the ordinary form is a collective, and the single item is made from it by adding -enn. Krampouezh is many, and krampouezhenn is only one. Del is all the leaves on the tree, and delienn is one. In English it is the other way round: leaf comes first, and leaves comes after. That is why both forms are on the wordlist: if only one is kept, the interesting part is lost.
C1 — Ar reizhskrivadurioù
N'eus ket ur reizhskrivadur hepken evit ar brezhoneg. Ar peurunvan a zo an hini muiañ implijet er c'hantved-mañ hervez ARBRES, hag eñ eo a implijomp amañ. Met ez eus reoù all: Skolveurieg, etrerannyezhel, ha stummoù a-raok ar reizhadurioù. Pa welit brezoneg e-lec'h brezhoneg, n'eo ket ur fazi: ur skrivadur eus ur reizhskrivadur all eo. Div reolenn eta: dibabit unan ha chomit e-; ha na varnit ket ar re all.
— There is not just one orthography for Breton. Peurunvan is the most used in this century according to ARBRES, and it is the one we use here. But there are others: Skolveurieg, interdialectal, and older forms from before the reforms. When you see brezoneg instead of brezhoneg, it is not an error: it is a spelling from another orthography. Two rules, then: choose one and stay inside it; and do not pass judgement on the others.
C2 — Petra a chom da ober
Ne gaver ket amañ pep tra. N'eus ket taolenn glok eus ar verboù, rak ezhomm ez eus eus ur yezhadur evit se, ha n'eo ket bet gallet lenn hini ebet e-pad al labour-mañ. N'eus ket ur daolenn IPA hepken, rak zaolenn disheñvel a gaver e PHOIBLE ha n'int ket unvan. N'eus ket ur gartenn eus ar rannyezhoù, rak an atlasoù a zo istorel hag e rankont bezañ meneget gant o deiziad. Ha n'eus bet lennet gant den ebet a gomz brezhoneg. Setu ar wirionez, ha gwelloc'h eo he lavarout he kuzhat.
— Not everything is found here. There is no complete verb table, because a deep reference grammar is needed for that, and it was not possible to read one during this work. There is no single IPA table, because three different tables are found in PHOIBLE and they do not agree. There is no dialect map, because the atlases are historical and have to be cited with their dates. And none of this has been read by anyone who speaks Breton. That is the truth, and it is better to say it than to hide it.
Glossary — every Breton word in this guide that is not on the deck
The readers and the recap above are built from the deck, but six graded texts and six grammatical summaries cannot be written from a wordlist alone: they need connectives, abstract nouns, and the metalanguage for talking about grammar in Breton. Every such word is listed here. The build script checks this list against every Breton paragraph in the file and fails loudly if anything is missing, so the claim is mechanical rather than decorative. Contracted forms (d'ar for da + ar, n'eo for ne + eo, er for e + ar) are elisions of deck words and are not repeated.
One caveat the reader deserves. Deck words were harvested from a source and can be checked. The words in this glossary were supplied by the author of the guide, and although they are ordinary Breton, they have not been verified against a dictionary entry one by one. That is part of why this guide carries a review flag.
Glossary of non-deck Breton used in this guide
| Breton | English |
|---|---|
| anv | name |
| yezh | language |
| yezhadur | grammar (the deck carries gramadeg for the same sense) |
| reizhskrivadur | orthography, spelling system |
| etrerannyezhel | interdialectal — the name of one Breton orthography |
| sonerezh | music |
| gwerz | gwerz — a long narrative ballad, usually tragic |
| sonenn | sonenn — a shorter, lighter song |
| diskan | the answering part in kan ha diskan singing |
| fest-noz | fest-noz — a night dance gathering |
| hengounel | traditional |
| breizhat | Breton (adjective, of Brittany) |
| kontadenn | a tale, a story |
| benveg | instrument, tool |
| frazenn | sentence |
| bugale | children |
| bugaleaj | childhood |
| buhez | life |
| ezhomm | need |
| skeud | reflection, image |
| gudenn | problem |
| pinvidigezh | richness |
| brezel | war |
| troioù-lavar | turns of phrase, idioms |
| anavezout | to know (a person), to be acquainted with |
| asantiñ | to agree, to consent |
| koulskoude | however, nevertheless |
| abaoe | since |
| a-wechoù | sometimes |
| sioul | calm, quiet |
| stag | attached, bound (to) |
| nemet | only, except |
| penaos | how |
| etrezo | among themselves |
| eta | then, therefore |
| tro | turn; surroundings — en ho tro 'around you' |
| gwech | time, occasion |
| keltiek | Celtic |
| kembraeg | Welsh (the language) |
| kernaoueg | Cornish (the language) |
| kensonenn | consonant |
| araogenn | preposition |
| displegañ | to conjugate, to decline |
| rummad | series, class, category |
| blotaat | to lenite — the soft mutation |
| c'hwezhañ | to spirantise — the aspirate mutation |
| kaletaat | to harden — provection, the hard mutation |
| ugentad | a score, a group of twenty |
| verb | verb |
| rener | subject (of a clause) |
| isurzhiet | subordinate |
| diverradenn | summary |
| kaozeadenn | discussion |
| ster | meaning, sense |
| stroll | collective (noun) |
| unander | singulative; singular |
| boutin | common, ordinary |
| gwezenn | a tree (singulative of gwez) |
| taolenn | table, chart |
| kartenn | map (the deck also has it as 'card') |
| rannyezh | dialect |
| atlas | atlas |
| istorel | historical |
| meneget | cited, mentioned |
| deiziad | date |
| gwirionez | truth |
| kuzhat | to hide |
| glok | complete |
| unvan | uniform, in agreement |
| fazi | error, mistake |
| skrivadur | a spelling |
| reizhadur | a reform, a correction |
| meur a | several |
| a-raok | before, in front of |
| diouzhtu | straight away, immediately |
| souezh | surprise |
| talvoudus | worthwhile, valuable |
| rankout | to have to, must |
| degas | to bring, to trigger |
| gallout | to be able (also on the deck) |
| kavout | to find (gaver 'is found') |
13. Where this guide stops, honestly
Several things a complete Breton course would contain are not here, and listing them is more useful than papering over them.
- No full verbal paradigm. Person, number, tense, aspect and mood in Breton require a page-level reference grammar. Press (1986) is the standard work; its metadata is verified but its chapters were not accessible for this build, so no paradigm has been reproduced from memory.14
- No variety-neutral IPA chart, for the reasons set out in section 2 — the three PHOIBLE inventories do not agree and their union is not a language.7
- No systematic dialect map. The ALBB and NALBB exist and are the right sources; they are historical field records requiring date, survey point and elicitation question to be quoted with any form.13
- No community review. Nothing here has been checked by a Breton speaker or a Breton-language institution.
14. Practice
Practice 1 — mutation triggers
Practice: Lenition after da 'your'; spirantization after ma 'my'; lenition of a feminine singular after the article. Type the missing word — accents are optional.
- 1.ma (my dog — radical: ki)
Hint: ma spirantises k
- 2.da (your dog — radical: ki)
Hint: da lenites k
- 3.ma (my father — radical: )
Hint: ma spirantises t
- 4.da (your father — radical: tad)
Hint: da lenites t
- 5.ar (the chair, feminine — radical: )
Hint: the article lenites a feminine singular
- 6.da (your table — radical: )
Hint: da lenites t
- 7.ma (my head — radical: penn)
Hint: ma spirantises p
- 8.da (your mother — radical: )
Hint: da lenites m
- 9.da (your word — radical: )
Hint: da lenites g to c'h
- 10.da (your book — radical: )
Hint: l has no mutation — a trap
10 questions
Grammar reference: Mutation series and triggers follow the standard table in ARBRES, 'Mutations consonantiques'. Every radical form used is a card on this guide's deck.. Sentences are original to LinguaCommons.
Practice 2 — conjugated prepositions and core verbs
Practice: Inflected forms of da 'to' and gant 'with'; the citation forms of high-frequency verbs. Type the missing word — accents are optional.
- 1. (to me — from da)
Hint: 1sg
- 2. (with me — from )
Hint: 1sg
- 3. (to her — from da)
Hint: 3sg feminine
- 4. (with him — from gant)
Hint: 3sg masculine
- 5. (to you, plural — from da)
Hint: 2pl
- 6. (to be)
Hint: the copula
- 7. (to have)
Hint: also 'to get'
- 8. (to do, to make)
Hint: also the auxiliary that conjugates other verbs
- 9. (to go)
Hint: mond is the same word in another orthography
- 10. (to know a fact)
Hint: not the same verb as 'to know a person'
10 questions
Grammar reference: Every answer is a card on this guide's deck, harvested from kaikki.org's mirror of English Wiktionary.. Sentences are original to LinguaCommons.
15. Questions people actually ask
Is Breton just French with a Celtic accent?
Show answer
No — it is not Romance at all. Breton is Brythonic Celtic, a sister of Cornish and Welsh, carried to Armorica from Britain.2 It has borrowed heavily from French, as English borrowed from Norman, but its grammar is unrelated: initial consonant mutation, V2 main clauses, conjugated prepositions, vigesimal counting and collective/singulative number are all Celtic features with no French source.910
Is Breton dying?
Show answer
The honest answer is that the evidence points two ways and the sources disagree with each other. Glottolog's page is internally inconsistent, showing an AES heading of 'not endangered' beside a cited comment reporting 'At risk'.1 Meanwhile the 2024 survey shows the mean speaker age falling from 70 to 58.5 in six years — the opposite of the usual endangerment signature — while also showing that only 16% of speakers got the language from their family.3 A language sustained by schools rather than households is in an unusual position that the standard vitality scales were not designed to measure.
Which orthography should I learn?
Show answer
Peurunvan, unless you have a specific reason not to. ARBRES identifies it as the majority written standard of the twenty-first century, and it is what this guide and its deck use.4 But learn to recognise Skolveurieg and pre-reform spellings on sight, because a large amount of the printed literature uses them, and treating brezoneg as a misspelling of brezhoneg will make you misread the books.
Why does the deck not have a word for 'cat'?
Show answer
Because the specific Wiktionary range page holding it was not among the ones harvested for this build, and the deck carries only forms that were actually read from a source. Supplying kazh from memory would have been easy and would have quietly broken the rule that makes the other 777 cards trustworthy. The gap is documented in the deck's own source note and a later harvest will close it.
Can I get to Brittany and use this?
Show answer
Yes, with realistic expectations. Breton is not the default language of public life anywhere, and you will not be able to conduct daily business in it. What does exist is a network of places where it is actively used: fest-noz gatherings, of which about a thousand are held each year;18 Breton-medium schools; the associative radio stations; bookshops carrying Al Liamm and Ya!. Going to a fest-noz is the single highest-value thing a learner can do.
16. Where to go next
- Breton vocabulary — the full 777-term deck, with SRS trainerA1–C1 — Peurunvan spelling, browsable as a table, with CSV / TSV / Anki / .apkg downloads. Identical to the table on this page.
- Desketa — the Office public de la langue bretonne's free courseA0–A1 — Launched June 2024. Covers A0–A1, with audio recorded by experienced speakers. The best institutional starting point.
- ARBRES — the CNRS research grammar of BretonC1–C2 — Edited by Mélanie Jouitteau at the IKER research unit. Technical, source-traced, and the right authority for any grammatical question. Cite individual topic pages.
- UD Breton-KEB — the annotated dependency treebankC1–C2 — 884 sentences, 9,725 tokens, CC BY-SA 4.0. Search attested structures rather than guessing at them.
- PHOIBLE — the three Breton phoneme inventoriesReference — SPA 157 (42 segments), UPSID 260 (45) and Bothoa EA 2584 (66). Compare them; do not merge them.
- Fest-noz — UNESCO Intangible Cultural HeritageAll levels — Inscribed 2012. The nomination file is the best short description of the practice and its scale.
- Brezhoweb — television entirely in BretonB1–C2 — The first web television broadcasting exclusively in Breton. Comprehensible input at real speed.
- Glottolog — Breton (bret1244)Reference — Classification and reference list. Note the internally inconsistent vitality record discussed in section 1.
Notes & Bibliography
- Hammarström, Harald, Robert Forkel, Martin Haspelmath, and Sebastian Bank, eds. "Glottolog — Breton." Max Planck Institute for Evolutionary Anthropology, Leipzig. Accessed July 17, 2026. Display name Breton, alternative name Brezhoneg, ISO 639-3 bre, Glottocode bret1244, country France. Source also of the internally inconsistent vitality record noted in section 1: the page shows an AES heading of "not endangered" while its cited comment reports "At risk" with low certainty from a 2012 source. [source] ↩
- World Atlas of Language Structures Online. "Language Breton." Accessed July 17, 2026. Independently records the same ISO 639-3 and Glottocode identifiers and places Breton in the Indo-European family, Celtic genus, in France. [source] ↩
- Région Bretagne. "Transmission et usage du breton et du gallo : résultats de l'étude sociolinguistique 2024." Accessed July 17, 2026. TMO survey commissioned by the Brittany Region; 8,336 residents interviewed by telephone between 30 August and 8 November 2024 across the five departments of historical Brittany. 2.7% reported speaking Breton "very well" or "quite well", extrapolated to approximately 107,000 speakers; mean speaker age 58.5 against 70 in the 2018 study; 16% attributed acquisition to family transmission and 78% to education. Treated throughout as a survey estimate of self-reported proficiency, not a census count. [source] ↩
- Jouitteau, Mélanie, ed. "Breton standard" and "Guide d'annotation de transcription." ARBRES, participatory research grammar hosted by the IKER research unit (CNRS / Université Bordeaux Montaigne / UPPA). Accessed July 17, 2026. Describes more than one Breton orthography and identifies the zh system, peurunvan, as the majority written standard in the twenty-first century; uses peurunvan as a transcription base while allowing adaptation where dialect data require it. [source] ↩
- Légifrance. "Constitution du 4 octobre 1958, Article 75-1." Accessed July 17, 2026. "Les langues régionales appartiennent au patrimoine de la France." The official consolidated text dates the provision to 25 July 2008. Quoted here as heritage recognition specifically, not as official-language status. [source] ↩
- Académie de Rennes. "Enseignement du breton et du gallo dans l'académie." Accessed July 17, 2026. For 2025–2026: 9,212 pupils in public primary schools, 3,285 middle-school pupils, 292 high-school pupils in bilingual and optional Breton provision. Date-specific administrative figures covering the public academy only; they exclude Diwan immersion schools, Catholic bilingual streams and adult courses. [source] ↩
- PHOIBLE Online. "Inventories for Breton (bret1244)." Accessed July 17, 2026. Three non-identical inventories: SPA 157 with 42 segments (Ternes 1970); UPSID 260 with 45 (Ternes 1970; Bothorel et al. 1982); EA 2584 for Bothoa with 66 (Iosad 2013). The Bothoa record is explicitly locality-specific and is 21–24 segments larger than the two general records. [source] ↩
- Office public de la langue bretonne / Ofis publik ar brezhoneg. Institutional site, including the Desketa learning platform, the TermOfis terminology database and thematic lexicons. Accessed July 17, 2026. Desketa launched June 2024; the Office describes its initial coverage as A0–A1 with audio recorded by experienced speakers. TermOfis is framed by the Office itself as a terminology database rather than a general dictionary. [source] ↩
- Jouitteau, Mélanie, ed. "Mutations consonantiques." ARBRES. Accessed July 17, 2026. Defines initial mutation as a change affecting a word-initial consonant and documents several series rather than one process; the standard-oriented table covers initial K, T, P, G, D, B, M and Gw and distinguishes lenition, spirantization, fortition, the mixed mutation and a reduced system. Also the basis for treating mutation as conditioned by lexical category and morphosyntactic environment. [source] ↩
- Jouitteau, Mélanie, ed. "V2" and the associated matrix-clause pages. ARBRES. Accessed July 17, 2026. Analyses Breton matrix clauses as predominantly V2, with the finite or tense-bearing element in second position and the first constituent not required to be the subject, and contrasts this with embedded clauses described as frequently VSO. [source] ↩
- Universal Dependencies. "UD Breton-KEB." Accessed July 17, 2026. Manually annotated dependency treebank: 884 sentences, 9,725 tokens, 10,006 syntactic words; source mix includes grammatical examples, Breton Wikipedia, Office public material, prose and traditional songs; CC BY-SA 4.0. Source of the four attested sentences in section 6, quoted with their corpus identifiers (grammar.vislcg.txt:1:0, 5:103, 8:182, 9:199) and the short translations stored with the records. [source] ↩
- kaikki.org. "Breton machine-readable dictionary." Machine-readable mirror of English Wiktionary generated with wiktextract; Breton pages generated 2026-08-02 from the enwiktionary dump of 2026-07-06. Accessed August 4, 2026. Source of every headword and gloss on this guide's 777-term deck, and of the note that ober functions as an auxiliary used to conjugate any verb. Community-edited; reference tier. [source] ↩
- CNRS and Centre de recherche bretonne et celtique. Documentation of the Atlas linguistique de la Basse-Bretagne and the Nouvel atlas linguistique de la Basse-Bretagne. Accessed July 17, 2026. Pierre Le Roux's ALBB, six volumes published 1924–1953 with approximately 100 maps per volume, surveyed 77 points; Jean Le Dû's NALBB expanded coverage to 187 points. Historical field records requiring date, survey point and elicitation question before any form is presented as current usage. [source] ↩
- Press, Ian J. A Grammar of Modern Breton. Berlin: Mouton de Gruyter, 1986. DOI 10.1515/9783110884975. Publisher metadata verified; full chapter content was not accessible for this build, so the work is cited for bibliography and onward routing only and no paradigm has been reproduced from it. [source] ↩
- Queen's University Belfast research repository. "Breton-language media: opportunities and challenges." Accessed August 4, 2026. Survey of the Breton-language media landscape, identifying the newspaper Ya! and the general magazine Bremañ as the most-cited Breton-language publications, followed by the literary magazine Al Liamm and the generalist Al Lanv (Quimper, four issues a year); also records the children's magazine Louarnig-Rouzig, the television outlets Brezhoweb, France 3 Breizh, France 3 Iroise, TV Breizh and TV Rennes, and the radio stations Arvorig FM, France Bleu Armorique, France Bleu Breizh-Izel, Radio Bro Gwened, Radio Kerne and Radio Kreiz Breizh. [source] ↩
- "Brezhoweb." Breton-language web television. Described in the Breton regional press and by France 3 / ICI Armorique as the first web television broadcasting exclusively in the Breton language. Accessed August 4, 2026. [source] ↩
- "France Bleu Breizh Izel" / "Ici Breizh Izel." Wikipedia. Accessed August 4, 2026. Public service generalist radio station serving Lower Brittany, the traditionally Breton-speaking area, carrying Breton-language programming; rebranded within the Ici network. Caution-tier tertiary source, used here only for the station's identity and remit. [source] ↩
- UNESCO. "Fest-noz, festive gathering based on the collective practice of the traditional dances of Brittany." Representative List of the Intangible Cultural Heritage of Humanity, inscribed 2012. Accessed August 4, 2026. Records that about a thousand fest-noz take place each year with participants from a hundred to several thousand, thousands of musicians and singers and tens of thousands of regular dancers, drawing on inherited dance repertoires with several hundred variations and thousands of tunes, and that transmission traditionally occurs through immersion, observation and imitation. [source] ↩