Mbukushu language
Mbukushu or Thimbukushu is a Bantu language spoken by 45,000 people along the Okavango River in Namibia, where it is a national language, and in Botswana, Angola and Zambia. Mbukushu is one of several Bantu languages of the Okavango which have click consonants; Mbukushu has three: tenuis "c," voiced "gc," and nasalized "nc," as well as prenasalized "ngc," which vary between speakers as dental, palatal, and postalveolar. It also has a nasal glottal approximant.