/ Dictionary / Index T training pants: Meaning and Definition of Find definitions for: train'ing pants" Pronunciation: [key] briefs or shorts of cotton with added thickness, worn by a young child during toilet training. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. training college training school Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language