/ Dictionary / Index M Masai: Meaning and Definition of Find definitions for: Ma•sai Pronunciation: (mu-sī'), [key] — pl. -sais, -sai. a member of an African people inhabiting the highlands of Kenya and Tanzania and having a largely pastoral economy and a society based on the patrilineal clan. the Nilotic language of the Masai. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: masai (Thesaurus) Masada Masan Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language