/ Dictionary / Index T ti: Meaning and Definition of Find definitions for: ti Pronunciation: (tē), [key] — pl. tis. the syllable for the seventh tone of a diatonic scale. (in the fixed system of solmization) the tone B. ti Pronunciation: (tē), [key] — pl. tis. a widely cultivated tropical plant, Cordyline terminalis, of the agave family, having narrow, leathery, often variegated leaves and yellowish, white, or reddish flowers. Ti Pronunciation: [key] — Symbol, Chem. titanium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ti (Thesaurus) THz TIA 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