/ Dictionary / Index P participant: Meaning and Definition of Find definitions for: par•tic•i•pant Pronunciation: (pär-tis'u-punt), [key] — n. a person or group that participates; partaker. —adj. participating; sharing. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: participant (Thesaurus) participance participant observation Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language