/ Dictionary / Index T tidal bore: Meaning and Definition of Find definitions for: tid'al bore' Pronunciation: [key] bore. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tidal benchmark tidal datum Related Content Daily Word Quiz: confectionery Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language