Several members of it have borrowed click sounds from the Khoisan languages.
Carl Meinhof constructed an ancestral form of this group of languages and Malcolm Guthrie divided it into eastern and western branches. Most members employ a tonal system, and a distinguishing feature of this group is an extensive system of noun class systems, which are usually denoted by prefixes. Several members of it have borrowed click sounds from the Khoisan languages. FTP, what is this largest subgroup of the Niger-Congo languages, which includes Xhosa, Zulu and Swahili?
Carl Meinhof constructed an ancestral form of this group of languages and Malcolm Guthrie divided it into eastern and western branches.
{Bantu}