Voiced velar plosive

The symbol in the International Phonetic Alphabet that represents this sound is ⟨ɡ⟩. The traditional IPA symbol is the so-called single-storey or opentail G ⟨⟩, but the double-storey or looptail G ⟨⟩ is acceptable. The Unicode character U+0067 g LATIN SMALL LETTER G renders as either a single-storey G or a double-storey G depending on font; the character U+0261 ɡ LATIN SMALL LETTER SCRIPT G is always a single-storey G, but it is generally available only in fonts supporting the IPA Extensions Unicode character block.

Features of a voiced velar stop:

• Its manner of articulation is occlusive, which means it is produced by obstructing airflow in the vocal tract. Since the consonant is also oral, with no nasal outlet, it is a plosive.
• Its place of articulation is velar, which means it is articulated with the back of the tongue (the dorsum) at the soft palate.
• Its phonation is voiced, which means the vocal cords vibrate during the articulation.
• It is an oral consonant, which means that air is not allowed to escape through the nose.
• It is a median consonant, which means it is produced by directing the airstream down the midline of the tongue, rather than to the sides.
• Its airstream mechanism is pulmonic, which means it is articulated by pushing air only with the intercostal muscles and abdominal muscles, as in most speech sounds.

Of the six stops that would be expected from the most common pattern worldwide, that is, three places of articulation plus voicing ([p b, t d, k ɡ]), [p] and [ɡ] are the most frequently missing, being absent in about 10% of languages that otherwise have this pattern. The lack of a voiceless bilabial stop [p] is an areal feature. Missing [ɡ], (when the language uses voicing to contrast stops) on the other hand, is widely scattered around the world, for example /ɡ/ is not a native phoneme of Belarusian, Dutch, Czech, and Slovak and occurs only in borrowed words in those languages. A few languages, such as Modern Standard Arabic and part of the Levantine dialects (e.g. Lebanese and Syrian), are missing both, although most of the other Arabic dialects have /ɡ/ in their native phonemic systems as a reflex of ⟨ق⟩ or less commonly of ⟨ج⟩.

It seems that [ɡ] is somewhat more difficult to articulate than the other basic stops. Ian Maddieson speculates that this may be due to a physical difficulty in voicing velars: Voicing requires that air flow into the mouth cavity, and the relatively small space allowed by the position of velar consonants means that it will fill up with air quickly, making voicing difficult to maintain in [ɡ] for as long as it is in [d] or [b]. This could have two effects: [ɡ] and [k] might become confused, and the distinction is lost, or perhaps a [ɡ] never develops when a language first starts making voicing distinctions. With uvulars, where there is even less space between the glottis and tongue for airflow, the imbalance is more extreme: voiced [ɢ] is much rarer than voiceless [q].

In many Indo-Aryan languages, such as Hindustani, plain [ɡ] and aspirated [ɡʱ] are in contrastive distribution.