The transcription used here is largely that of the international system with some modifications for display on the web.

Phonetic	Pronunciation
/a/	a as in man
/ã/	an as in French manger approximately as o in English got but releasing some air through the nose
/e/	é as in French été or ay as in English day without the 'y' sound (e.g. Scottish pronunciation)
/ê/	e as in bed.
/i/	i as in machine
/o/	o as in Scottish pronunciation (i.e. a single sound, keeping rounded lips still) of go
/õ/	on as in French pont or for previous 'o' but releasing some air through the nose
/ö/	eu as in French feu approximately as in the English hesitation 'errrr' but shorter with tightly rounded-lips
/O/	as in British English soft
/Ö/	oe as in French coeur or similar to e in English her
/u/	ou as in French hibou similar to oo in English zoo but longer with more rounded lips
/y/	u as in French mur a little like ew in few but shorter with tightened lips

Long vowels are shown by a following ":" : /a:/, ...

Phonetic	Pronunciation
/b/	b as in boy
/k/	k as in kind
/x/	ch slightly guttural as in Scottish loch or j as in Spanish jota
/d/	d as in do
/f/	f as in free
/g/	g as in go
/h/	h as in happy
/l/	l as in like
/m/	m as in me
/n/	n as in no
/p/	p as in please
/r/	r as in French rapace a light friction of the soft palate or gargle
/s/	s as in snake
/t/	t as in tea
/v/	v as in virtual
/w/	w as in west
/z/	z as in zebra
/j/	y as in you

The main stress in a word is shown by a "'" placed immediately before the stressed syllable.

Breton is a strongly stressed language. Stress is generally on the penultimate syllable of the word.

Final consonants not followed by a vowel become hard (voiceless) : a G sounds like a K, a D like a T, Z-S, B-P, etc ... (a bit like in German). If however they are followed by a vowel, the opposite effect happens (K sounds like G etc).