/ Dictionary / Index R runny: Meaning and Definition of Find definitions for: run•ny Pronunciation: (run'ē), [key] — -ni•er, -ni•est. tending to run or drip: a runny paste. (of the nose) discharging mucus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: runny (Thesaurus) running title Runnymede Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language