Entry 1 sense Webster, 1913 Deipnosophist /(dīp*nŏs"ō̇*fĭst)/ · Deip·nos·o·phist · IPA /daɪpˈnɒsəfɪst/ 01 n. One of an ancient sect of philosophers, who cultivated learned conversation at meals. 1. One of an ancient sect of philosophers, who cultivated learned conversation at meals.