Only in Cebuano 1
What this means for learners
Indonesian and Cebuano share 20 sounds — roughly 65% of Cebuano's inventory overlaps with Indonesian. Shared sounds are ones a speaker already knows from their native language and will generally produce and perceive accurately without explicit training.
The 1 sound found only in Cebuano represent the greatest pronunciation challenge for Indonesian 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, Indonesian has 11 sounds not used in Cebuano. Native Cebuano speakers learning Indonesian 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.