/ Dictionary / Index R runt: Meaning and Definition of Find definitions for: runt Pronunciation: (runt), [key] — n. an animal that is small or stunted as compared with others of its kind. the smallest or weakest of a litter, esp. of pigs or puppies. a person who is small and contemptible: That runt causes most of the trouble at the meetings. an old or decayed tree stump. an old cow or ox. an ugly old woman; hag. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: runt (Thesaurus) runproof run-through Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language