Swa·hi·li /swɑːˈhiːli, swə-/ noun 1. [uncountableU] a Bantu language spoken in eastern and central Africa, and used especially as a lingua franca (=a language used between people whose first languages are different). It is the official language of Kenya and Tanzania.
2. [countableC] a member of the Bantu people of Zanzibar who originally spoke this language
—Swahili adjectiveadj