A voiceless bilabial implosive is a rare consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is or . A dedicated IPA letter, , was withdrawn in 1993. Features Features of the voiceless bilabial implosive: Occurrence A rare and evidently unstable sound, is found in the Serer of Senegal, the Owere dialect of Igbo in Nigeria, and in some dialects of the Poqomchiʼ and Quiche languages of Guatemala. It can also be found in Ngiti in the Democratic Republic of the Congo. It is also found in the Sunwar language of Nepal. See also Voiced bilabial implosive References External links Bilabial consonants Implosives Voiceless oral consonants