Rotokas language in the context of Voiced alveolar nasal

A voiced alveolar nasal is a type of consonantal sound used in numerous spoken languages. The symbol in the International Phonetic Alphabet that represents dental, alveolar, and postalveolar nasals is ⟨n⟩.

The vast majority of languages have either an alveolar or dental nasal. There are a few languages that lack either sound but have [m], such as Yoruba, Palauan, and colloquial Samoan (however, these languages all have [ŋ]. An example of a language without [n] and [ŋ] is Edo). There are some languages (e.g. Rotokas) that lack both [m] and [n].

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 ⟨m⟩. 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.