Labial–velar consonant
Labial–velar consonants are doubly articulated at the velum and the lips, such as [k͡p]. They are sometimes called "labiovelar consonants", a term that can also refer to labialized velars, such as the stop consonant [kʷ] and the approximant [w].
In languages that use Latin scripts, labial–velars are often written with digraphs, but not always. In the Kâte language, for example, /k͡p/ is written with Q q, and /ɡ͡b/ with Ɋ ɋ.
Globally, these types of consonants are quite rare, only existing in two regions: West and Central Africa on the one hand, Eastern New Guinea and northern Vanuatu on the other. There are two other isolated cases, allophonically in Vietnamese and in the Adu dialect of Nuosu (Yi).