/ Dictionary / Index T T.B.A.: Meaning and Definition of Find definitions for: T.B.A. Pronunciation: [key] to be announced. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. TB T-bar Related Content Daily Word Quiz: pugilist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language