Bilabial consonant

Consonant articulated with both lips
This article contains phonetic transcriptions in the International Phonetic Alphabet (IPA). For an introductory guide on IPA symbols, see Help:IPA. For the distinction between [ ], / / and ⟨ ⟩, see IPA § Brackets and transcription delimiters.

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

Frequency

Bilabial consonants are very common across languages. Only around 0.7% of the world's languages lack bilabial consonants altogether, including Tlingit, Chipewyan, Oneida, and Wichita,[1] though all of these have a labial–velar approximant /w/.

Varieties

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

IPA Description Example
Language Orthography IPA Meaning
m̥ voiceless bilabial nasal Hmong Hmoob [m̥ɔ̃́] Hmong
m voiced bilabial nasal English man [mæn] man
p voiceless bilabial plosive English spin [spɪn] spin
b voiced bilabial plosive English bed [bɛd] bed
p͡ɸ voiceless bilabial affricate Kaingang[2] fy [ˈp͡ɸɤ] 'seed'
b͡β voiced bilabial affricate Shipibo[3] boko [ˈb͡βo̽ko̽] 'small intestine'
ɸ voiceless bilabial fricative Japanese 富士山 (fujisan) [ɸuʑisaɴ] Mount Fuji
β voiced bilabial fricative Ewe ɛʋɛ [ɛ̀βɛ̀] Ewe
β̞ bilabial approximant Spanish lobo [loβ̞o] wolf
ⱱ̟ voiced bilabial flap Mono[4] vwa [ⱱ̟a] 'send'
ʙ̥ voiceless bilabial trill Pará Arára[5] [ʙ̥uta] 'to throw away'
ʙ voiced bilabial trill Nias simbi [siʙi] lower jaw
pʼ bilabial ejective stop Adyghe пӀэ [pʼa] meat
ɸʼ bilabial ejective fricative Yuchi[6] ḟasę [ɸ’asẽ] 'good evening!'
ɓ̥ voiceless bilabial implosive Serer [example needed]
ɓ voiced bilabial implosive Jamaican Patois beat [ɓiːt] beat
k͡ʘ q͡ʘ
ɡ͡ʘ ɢ͡ʘ
ŋ͡ʘ ɴ͡ʘ 		bilabial clicks (many distinct consonants) Nǁng ʘoe [k͡ʘoe] meat

Owere Igbo has a six-way contrast among bilabial stops: [p pʰ ɓ̥ b b̤ ɓ].[citation needed]

Other varieties

The extensions to the IPA also define a bilabial percussive ([ʬ] ⓘ) for smacking the lips together. A lip-smack in the non-percussive sense of the lips noisily parting would be [ʬ↓].[7]

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 since no language makes a distinction for centrality, the allophony is not noticeable.

See also

References

Citations

  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
  2. ^ Jolkesky (2009), pp. 680–681.
  3. ^ Valenzuela, Márquez Pinedo & Maddieson (2001).
  4. ^ Olson (2004:233)
  5. ^ de Souza, Isaac Costa (2010). "3" (PDF). A Phonological Description of "Pet Talk" in Arara (MA). SIL Brazil. Archived from the original (PDF) on 2013-10-12. Retrieved 2014-01-09.
  6. ^ Crawford, James M. (1973). "Yuchi Phonology". International Journal of American Linguistics. 39 (3): 173–179. doi:10.1086/465261. S2CID 224808560.
  7. ^ Heselwood, Barry (2013). Phonetic Transcription in Theory and Practice. Edinburgh University Press. p. 121. doi:10.3366/edinburgh/9780748640737.001.0001. ISBN 978-0-7486-4073-7. JSTOR 10.3366/j.ctt9qdrqz. S2CID 60269763.

Sources

General references
  • Jolkesky, Marcelo Pinho de Valhery (2009), "Fonologia e prosódia do Kaingáng falado em Cacique Doble", Anais do SETA, 3, Campinas: Editora do IEL-UNICAMP: 675–685
  • Ladefoged, Peter; Maddieson, Ian (1996). The Sounds of the World's Languages. Oxford: Blackwell. ISBN 0-631-19815-6.
  • McDorman, Richard E. (1999). Labial Instability in Sound Change: Explanations for the Loss of /p/. Chicago: Organizational Knowledge Press. ISBN 0-9672537-0-5.
  • Olson, Kenneth S. (2004). "Mono" (PDF). Journal of the International Phonetic Association. 34 (2): 233–238. doi:10.1017/S0025100304001744.
  • Valenzuela, Pilar M.; Márquez Pinedo, Luis; Maddieson, Ian (2001). "Shipibo". Journal of the International Phonetic Association. 31 (2): 281–285. doi:10.1017/S0025100301002109.
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Articulation
Place
Labial
Coronal
Active place
Dorsal
Laryngeal
Double articulation
Pathological
Other
Manner
Obstruent
Sonorant
AirstreamSecondary
articulationTongue shapeVoicePhonation
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IPA topics
IPA
Special topics
Encodings
Pulmonic consonants
Place → Labial Coronal Dorsal Laryngeal
Manner ↓ Bi­labial Labio­dental Linguo­labial Dental Alveolar Post­alveolar Retro­flex Palatal Velar Uvular Pharyn­geal/epi­glottal Glottal
Nasal m̥ m ɱ̊ ɱ n̼ n̥ n ɳ̊ ɳ ɲ̊ ɲ ŋ̊ ŋ ɴ̥ ɴ
Plosive p b p̪ b̪ t̼ d̼ t d ʈ ɖ c ɟ k ɡ q ɢ ʡ ʔ
Sibilant affricate ts dz t̠ʃ d̠ʒ tʂ dʐ tɕ dʑ
Non-sibilant affricate pɸ bβ p̪f b̪v t̪θ d̪ð tɹ̝̊ dɹ̝ t̠ɹ̠̊˔ d̠ɹ̠˔ cç ɟʝ kx ɡɣ qχ ɢʁ ʡʜ ʡʢ ʔh
Sibilant fricative s z ʃ ʒ ʂ ʐ ɕ ʑ
Non-sibilant fricative ɸ β f v θ̼ ð̼ θ ð θ̠ ð̠ ɹ̠̊˔ ɹ̠˔ ɻ̊˔ ɻ˔ ç ʝ x ɣ χ ʁ ħ ʕ h ɦ
Approximant ʋ ɹ ɻ j ɰ ʔ̞
Tap/flap ⱱ̟ ⱱ ɾ̼ ɾ̥ ɾ ɽ̊ ɽ ɢ̆ ʡ̆
Trill ʙ̥ ʙ r̥ r ɽ̊r̥ ɽr ʀ̥ ʀ ʜ ʢ
Lateral affricate tɬ dɮ tꞎ d𝼅 c𝼆 ɟʎ̝ k𝼄 ɡʟ̝
Lateral fricative ɬ ɮ ꞎ 𝼅 𝼆 ʎ̝ 𝼄 ʟ̝
Lateral approximant l ɭ ʎ ʟ ʟ̠
Lateral tap/flap ɺ̥ ɺ 𝼈̥ 𝼈 ʎ̆ ʟ̆

Symbols to the right in a cell are voiced, to the left are voiceless. Shaded areas denote articulations judged impossible.

Non-pulmonic consonants
BL LD D A PA RF P V U EG
Ejective Stop pʼ tʼ ʈʼ cʼ kʼ qʼ ʡʼ
Affricate p̪fʼ t̪θʼ tsʼ t̠ʃʼ tʂʼ tɕʼ kxʼ qχʼ
Fricative ɸʼ fʼ θʼ sʼ ʃʼ ʂʼ ɕʼ xʼ χʼ
Lateral affricate tɬʼ c𝼆ʼ k𝼄ʼ q𝼄ʼ
Lateral fricative ɬʼ
Click
(top: velar;
bottom: uvular) 		Tenuis kʘ
qʘ 		kǀ
qǀ 		kǃ
qǃ 		k𝼊
q𝼊 		kǂ
qǂ
Voiced ɡʘ
ɢʘ 		ɡǀ
ɢǀ 		ɡǃ
ɢǃ 		ɡ𝼊
ɢ𝼊 		ɡǂ
ɢǂ
Nasal ŋʘ
ɴʘ 		ŋǀ
ɴǀ 		ŋǃ
ɴǃ 		ŋ𝼊
ɴ𝼊 		ŋǂ
ɴǂ 		ʞ
 
Tenuis lateral kǁ
qǁ
Voiced lateral ɡǁ
ɢǁ
Nasal lateral ŋǁ
ɴǁ
Implosive Voiced ɓ ɗ ᶑ ʄ ɠ ʛ
Voiceless ɓ̥ ɗ̥ ᶑ̊ ʄ̊ ɠ̊ ʛ̥
Co-articulated consonants
Labial–velar
ɧ
Sj-sound (variable)
Lateral approximant
Velarized alveolar
Labial–velar
Labial–alveolar
Other
Front Central Back
Close
•
•
Near-close
Close-mid
•
•
Mid
Open-mid
Near-open
•
Open
•
•

Legend: unrounded • rounded


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