Trojan Syllabification: (Tro·jan)Pronunciation: /ˈtrōjən/Definition of Trojan adjective of or relating to ancient Troy in Asia Minor:Trojan legends noun a native or inhabitant of ancient Troy. Phrases work like a Trojan (or Trojans) work extremely hard. Origin: Middle English: from Latin Troianus, from Troia 'Troy'Trojan in other Oxford dictionaries Definition of Trojan in the British & World English dictionary