/ Dictionary / Index Q quid pro quo: Meaning and Definition of Find definitions for: quid pro quo Pronunciation: (kwid' prō kwō'), [key] — pl. quid pro quos, quids pro quo (italics)one thing in return for another. something that is given or taken in return for something else; substitute. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. quidnunc quiescent Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language