Bilabial consonant

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

Transcription

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

IPA	Description	Example
		Language	Orthography	IPA	Meaning
	bilabial nasal	English	man	[mæn]	man
	voiceless bilabial stop	English	spin	[spɪn]	spin
	voiced bilabial stop	English	bed	[bɛd]	bed
	voiceless bilabial fricative	Japanese	富士山 (fujisan)	[ɸuʑisaɴ]	Mount Fuji
	voiced bilabial fricative	Ewe	ɛʋɛ	[ɛ̀βɛ̀]	Ewe
	bilabial approximant	Spanish	lobo	[loβ̞o]	wolf
	bilabial trill	Nias	simbi	[siʙi]	lower jaw
	bilabial ejective	Adyghe	пӀэ	[pʼa]	meat
ʘ̬ ʘ̃ ʘ̥̃ʰ ʘ̃ˀ	bilabial click release (many distinct consonants)	Nǁng	ʘoe	[ʘoe]	meat

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; these include 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). 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. This is sometimes read as indicating that such sounds are not possible. The fricatives [ɸ] and [β] may in fact often be lateral, but no language makes a distinction for centrality, and the allophony is not noticeable.

See also

• Place of articulation
• List of phonetics topics

References

Notes

General references

• Ladefoged, Peter; Maddieson, Ian (1996). The Sounds of the World's Languages. Oxford: Blackwell. ISBN 0-631-19814-8. 
• McDorman, Richard E. (1999). Labial Instability in Sound Change: Explanations for the Loss of /p/. Chicago: Organizational Knowledge Press. ISBN 0-967-25370-5.

International Phonetic Alphabet   IPA topics IPA International Phonetic Association History of the IPA Extensions to the IPA Kiel convention (1989) Journal of the IPA (JIPA) Naming conventions Phonetics Diacritics Segments Tone letter Place of articulation Manner of articulation Special topics Case variants of IPA letters Handwritten IPA Obsolete and nonstandard symbols IPA chart for English dialects Encodings SAMPA X-SAMPA Kirshenbaum TIPA Phonetic symbols in Unicode WorldBet IPA Braille   Consonants IPA pulmonic consonantschart image • audio Place → Labial Coronal Dorsal Laryngeal ↓ Manner Bilabial Labio­dental Linguo­labial Dental Alveolar Palato- alveolar Retroflex Alveolo- palatal Palatal Velar Uvular Pharyngeal / Epiglottal Glottal Nasal m̥ m ɱ n̼̊ n̼ n̥ n ɳ̊ ɳ ɲ̊ ɲ ŋ̊ ŋ ɴ̥ ɴ Stop p b p̪ b̪ t̼ d̼ t d ʈ ɖ c ɟ k ɡ q ɢ ʡ ʔ Sibilant affricate ts dz tʃ dʒ ʈʂ ɖʐ tɕ dʑ Non-sibilant affricate pɸ bβ p̪f b̪v tθ dð tθ̠ dð̠ t̠ɹ̠̊˔ d̠ɹ̠˔ cç ɟʝ kx ɡɣ qχ ɢʁ ʡħ ʡʕ ʔh Sibilant fricative s z ʃ ʒ ʂ ʐ ɕ ʑ Non-sibilant fricative ɸ β f v θ̼ ð̼ θ ð θ̱ ð̠ ɹ̠̊˔ ɹ̠˔ ç ʝ x ɣ χ ʁ ħ ʕ h ɦ ʔ̞ Approximant ɸ˕ ʋ θ̞ ɹ̥ ɹ ɻ̊ ɻ j̊ j ɰ̊ ɰ Flap or tap ⱱ̟ ⱱ ɾ̼ ɾ̥ ɾ ɽ̊ ɽ ɢ̆ ʡ̮ Trill ʙ r̼ r̥ r ɽr̥ ɽr ʀ̥ ʀ ʜ ʢ Lateral affricate tɬ dɮ ʈɭ̊˔ cʎ̥˔ kʟ̝̊ ɡʟ̝ Lateral fricative ɬ ɮ ɭ̊˔ ʎ̥˔ ʎ̝ ʟ̝̊ ʟ̝ Lateral approximant l̼ l̥ l ɭ̊ ɭ ʎ̥ ʎ ʟ ʟ̠ Lateral flap ɺ̼ ɺ ɭ̆ ʎ̮ ʟ̆ Non-pulmonic consonants Simple clicks ʘ ʘ̬ ʘ̃ ǀ ǀ̬ ǀ̃ ǃ ǃ̬ ǃ̃ ǂ ǂ̬ ǂ̃ ǁ ǁ̬ ǁ̃ ǃ˞ ǃ̬˞ ǃ̃˞ Other clicks ʘ̃ˀ ʘˀ ˀʘ̃ ʘ͡q ʘ͡qχ ʘ͡qʼ ʘ͡qχʼ ¡ ʞ Implosives ɓ ɗ ᶑ ʄ ɠ ʛ ɓ̥ ɗ̥ ᶑ̥ ʄ̊ ɠ̊ ʛ̥  Ejectives pʼ tʼ ʈʼ cʼ kʼ qʼ ʡʼ fʼ θʼ sʼ ɬʼ ʃʼ ʂʼ ɕʼ xʼ χʼ tsʼ tɬʼ tʃʼ ʈʂʼ tɕʼ cʎ̝̥ʼ kxʼ kʟ̝̊ʼ qχʼ Co-articulated consonants Continuants ʍ w ɥ̊ ɥ ɫ Occlusives k͡p ɡ͡b ŋ͡m ɧ t͡p d͡b n͡m q͡ʡ — These tables contain phonetic symbols, which may not display correctly in some browsers. [Help] — Where symbols appear in pairs, left–right represent the voiceless–voiced consonants. — Shaded areas denote pulmonic articulations judged to be impossible or not distinctive. Chart image Pulmonics Non-pulmonics Affricates Co-articulated   Vowels Front Near-​front Central Near-​back Back Close •iy •ɨʉ •ɯu •ɪʏ •ɪ̈ʊ̈ •ɯ̽ʊ •eø •ɘɵ •ɤo •e̞ø̞ •əɵ̞ •ɤ̞o̞ •ɛœ •ɜɞ •ʌɔ •æ •ɐɞ̞ •aɶ •äɒ̈ •ɑɒ Near-close Close-mid Mid Open-mid Near-open Open IPA help • chart •  chart with audio • view