/ Dictionary / Index M Mossi: Meaning and Definition of Find definitions for: Mos•si Pronunciation: (mos'ē), [key] — pl. -sis, -si an agricultural people of Africa living mainly in Burkina Faso. Also calledthe language of the Mossi people, a Gur language of the Niger-Congo family. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. moss hag mosso Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language