Bilabial consonant – Wikipedia

In phonetics, a bilabial consonant is a labial consonant articulated with both lips.

Transcription[edit]

The bilabial consonants identified by the International Phonetic Alphabet (IPA) are:

Owere Igbo has a six-way contrast among bilabial stops: [p pʰ ɓ̥ b b̤ ɓ]. Approximately 0.7% of the world’s languages lack bilabial consonants altogether, including Tlingit, Chipewyan, Oneida, and Wichita.[1]

The extensions to the IPA also define a bilabial percussive ([ʬ]) for striking the lips together (smacking the lips – see percussive consonant). A lip-smack in the non-percussive sense of the lips noisily parting would be [ʬ↓].[2]

The IPA chart shades out bilabial lateral consonants, which is sometimes read as indicating that such sounds are not possible. The fricatives [ɸ] and [β] are often lateral, but no language makes a distinction for centrality so the allophony is not noticeable.

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Notes[edit]

  1. ^ Maddieson, Ian. 2008. Absence of Common Consonants. In: Haspelmath, Martin & Dryer, Matthew S. & Gil, David & Comrie, Bernard (eds.) The World Atlas of Language Structures Online. Munich: Max Planck Digital Library, chapter 18. Available online at http://wals.info/feature/18. Accessed on 2008-09-15.
  2. ^ Heselwood (2013: 121)[citation not found]

General references[edit]

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