/ Dictionary / Index K koan: Meaning and Definition of Find definitions for: ko•an Pronunciation: (kō'än), [key] — pl. -ans, -an. a nonsensical or paradoxical question to a student for which an answer is demanded, the stress of meditation on the question often being illuminating. Cf. mondo. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: koan (Thesaurus) koala kob Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language