/ Dictionary / Index R runner's knee: Meaning and Definition of Find definitions for: run'ner's knee' Pronunciation: [key] chondromalacia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. runner's high runner-up Related Content Daily Word Quiz: verdant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language