/ Dictionary / Index T time machine: Meaning and Definition of Find definitions for: time' machine" Pronunciation: [key] a theoretical apparatus that would convey one to the past or future. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. timely time money Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language