Entry 1 sense Webster, 1913 Nouveau riche /no͞ovˌ-ō' rĭch/ · Nou·veau· riche · IPA /ˌnu.voʊ ˈɹiʃ/ 01 m. A person newly rich. Contrasted with old money. pl. Noveaux riches, Nouvelles riches ((#)) 1. A person newly rich. Contrasted with old money.