A voiced bilabial nasal is a type of consonantal sound which has been observed to occur in about 96% of spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is . The bilabial nasal occurs in English, and it is the sound represented by "m" in map and rum. Very few languages (e.g. Wyandot) are known to lack this sound. A small number of languages have been observed to lack independent nasal phonemes altogether, such as Quileute, Makah, and Central Rotokas.
Features of a voiced bilabial nasal: