Only in Breton 44
What this means for learners
Breton and Bhumij share 22 sounds — roughly 33% of Bhumij's inventory overlaps with Breton. Shared sounds are ones a speaker already knows from their native language and will generally produce and perceive accurately without explicit training.
The 32 sounds found only in Bhumij represent the greatest pronunciation challenge for Breton speakers. The adult brain tends to map unfamiliar sounds onto the closest native equivalent — a process that produces the characteristic "accent" of a second-language speaker. Learning to hear and produce these sounds as distinct requires focused ear training, not just repetition.
Conversely, Breton has 44 sounds not used in Bhumij. Native Bhumij speakers learning Breton will face the mirror-image challenge with these sounds.
Phoneme inventories from PHOIBLE. Data reflects one documented inventory per language; some variation exists across dialects and sources.