In phonetics and phonology, a bilabial stop is a type of consonantal sound, made with both lips (hence bilabial), held tightly enough to block the passage of air (hence a stop consonant). The most common sounds are the stops and , as in English pit and bit, and the voiced nasal . More generally, several kinds are distinguished:
, voiceless bilabial plosive , voiced bilabial plosive , voiced bilabial nasal , voiceless bilabial nasal , voiced bilabial implosive , bilabial ejective (rare) or , voiceless bilabial implosive (very rare)
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