/ Dictionary / Index T Trinitytide: Meaning and Definition of Find definitions for: Trin•i•ty•tide Pronunciation: (trin'i-tē-tīd"), [key] — n. the period between Trinity Sunday and Advent. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Trinity Sunday trinket Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language