capo2Pronunciation: /ˈkapəʊ/Definition of capo noun (plural capos) chiefly North American the head of a crime syndicate, especially the Mafia, or a branch of one: the Sicilian capo claims he controls most of the world’s heroin tradeOrigin: 1950s: from Italian, from Latin caput 'head'capo in other Oxford dictionaries Definition of capo in the US English dictionary