/ Dictionary / Index T tercentenary: Meaning and Definition of Find definitions for: ter•cen•ten•ar•y Pronunciation: (tûr"sen-ten'u-rē, tûr-sen'tn-er"ē esp. Brit. tûr"sen-tē'nu-rē), [key] — pl. -nar•ies. tricentennial. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tercentenary (Thesaurus) tercel tercet Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language