Entry 2 senses · 2 variants Webster, 1913 Participant /pär-tĭs'-əp-ənt/ · Par·tic·i·pant · IPA /pɑːɹˈtɪsəpənt/ a. n. 01 a. Sharing; participating; having a share or part. 1. Sharing; participating; having a share or part. 02 n. A participator; a partaker. 1. A participator; a partaker. “Participants in their . . . mysterious rites.” — Bp. Warburton.