/ Dictionary / Index T time signature: Meaning and Definition of Find definitions for: time' sig"nature Pronunciation: [key] — Music. Music. a numerical or other indication at the beginning of a piece showing the meter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. time signal timespan Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language