Entry 1 sense Webster, 1913 Centesimo /(sĕn"tĕs"ĭ*mō̇)/ · Cen·tes·i·mo · IPA /t͡ʃɛnˈtɛzɪmoʊ/ 01 n. A copper coin of Italy and Spain equivalent to a centime. pl. -mi ((sĕn"tĕs"ĭ*mē)) 1. A copper coin of Italy and Spain equivalent to a centime.