/ Dictionary / Index P pourboire*: Meaning and Definition of Find definitions for: pour•boire Pronunciation: (pr-bwar' Eng. p&oobrever-bwär'), [key] — pl. -boires a gratuity; tip. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pour pouring box Related Content Daily Word Quiz: ostracize Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language