/ Dictionary / Index T Tussi: Meaning and Definition of Find definitions for: Tus•si Pronunciation: (t'sē), [key] — pl. -sis, -si. Tutsi. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Tussaud tussiculation Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language