/ Dictionary / Index T throughout: Meaning and Definition of Find definitions for: through•out Pronunciation: (thr-out'), [key] — prep. in or to every part of; everywhere in: They searched throughout the house. from the beginning to the end of: He was bored throughout the play. —adv. in every part: rotten throughout. at every moment or point: following the text closely throughout. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: throughout (Thesaurus) through-other throughput Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language