Among the glides, only the unaspirated labio-velar glide shows this contrast.

However, it does not have labio-velar consonants.

The nasal labio-velar approximant is a type of consonantal sound used in some oral languages.

Features of the nasal labio-velar approximant:

When k and k' are followed by u and another vowel this virtually always represents the labio-velar phonemes.

Both voiced and voiceless stops occur in labial, alveolar, velar, and labio-velar places of articulation.

Bundjalung does not permit clusters of the same consonant, or clusters that begin with an obstruent phoneme or end with an approximant, except the labio-velar glide.

Word-initially, front vowels are preceded by the palatal glide and back rounded vowels are preceded by the labio-velar glide in the Konkani dialects of Karnataka.

In most parts of Brazil, the letter l before consonants and ending words, which represents a velarized alveolar lateral approximant in differing dialects, became a labio-velar approximant, making both words homophones.

The sound in Japanese denoted by is often described as unrounded but is actually pronounced with lip compression and is therefore labio-velar, albeit with acoustic differences from other labio-velar consonants.

The term labiovelar may refer to:

This argument contends that PIE had only two series, a simple velar and a labiovelar.

A relation to Arabic saifun and Egyptian sēfet has been suggested, although this doesn't explain the presence of a labiovelar in Mycenaean.

Interestingly, the p letter of the Gothic alphabet has a cognate name, pairþra, alongside the clearly related qairþra, the name for the Gothic labiovelar.

Hwair represents or , the Germanic languages pronunciation of the Indo-European labiovelar '*' after it underwent Grimm's law.

Another problem related to the name Gentius is the reason that nowadays it can not be stated surely if the initial /G/ of the sources was a palatovelar or a labiovelar.

The voiceless labiovelar (labialized velar) approximant (traditionally called a voiceless labiovelar fricative) is a type of consonantal sound, used in some languages.

Note that when a labiovelar adjoins an /o/ affected by Cowgill's law, the new /u/ will cause the labiovelar to lose its labial component (as in núks and ónuks/ónukh-).

The Mycenaean form of Greek language preserves a number of archaic features of its Indo-European language heritage, such as the labiovelar that underwent context-dependent sound changes by the time alphabetic Greek writing began a few hundred years later.

Gaulish changed the PIE voiceless labiovelar kʷ to p (hence P-Celtic), a development also observed in Brythonic (as well as Greek and some Italic languages), while the other Celtic, 'Q-Celtic', retained the labiovelar.

Some of the Ge'ez labiovelar letter variants are also used.

Unlike the other consonants, these labiovelar ones can only be combined with 5 different vowels:

It does not use the Ge'ez labiovelar letter variants.

It also uses the ones indicated below and the Ge'ez labiovelar letter variants.

Where the labiovelar variants are used, these come immediately after the basic consonant, and are followed by other variants.

It expresses the Primitive Irish labiovelar phoneme.

The delabialization of all labiovelar consonants except word-initially.

The palatal row therefore post-dated the original velar and labiovelar but Szemerényi does not give times.

A few ancient Indo-European languages are also noted for having labiovelar consonants, including Latin.

There is residual evidence of various sorts in satem languages of a former distinction between velar and labiovelar consonants.

(7 vowels, labiovelar and ejective consonants.)

This is taken (following Sergei Yakhontov) to indicate that Old Chinese had labiovelar and labiolaryngeal initials but no labiovelar medial.

The voiceless labiovelar (labialized velar) approximant (traditionally called a voiceless labiovelar fricative) is a type of consonantal sound, used in some languages.

The study, carried out in central Canada, examined the sociolinguistic variable (wh), where the unvoiced labiovelar glide /hw/ loses phonemic status and merges with the corresponding voiced glide /w/.

The central character is a Siberian native, who has been prisoner in a Gulag and who speaks a language that has almost disappeared, one that keeps the last vestige of a vanished sound, the lateral fricative with labiovelar appendix.

The consonants of Sowa were b, d, g, k, l, m, n, ng (as in English "singer"), p, r, s, t, bilabial v, w, z, and labiovelar bw, mw and pw.

Note that when a labiovelar adjoins an /o/ affected by Cowgill's law, the new /u/ will cause the labiovelar to lose its labial component (as in núks and ónuks/ónukh-).

This evidence shows that the labiovelar series was distinct from the plain velar series in PIE, and cannot have been a secondary development in the Centum languages; but it says nothing about the palatovelar vs. plain velar series.

Most speakers also use labiovelar bw, mw and pw, although from some speakers of outlying dialects these are indistinguishable from normal b, m and p. In additional to these consonants, the northern dialect has a bilabial f. In this dialect s may be pronounced like English sh.