| Noun | 1. | Trojan - a native of ancient TroyIlion, Ilium, Troy - an ancient city in Asia Minor that was the site of the Trojan War | |
| 2. | trojan - a program that appears desirable but actually contains something harmful; "the contents of a trojan can be a virus or a worm"; "when he downloaded the free game it turned out to be a trojan horse" | |
| Adj. | 1. | Trojan - of or relating to the ancient city of Troy or its inhabitants; "Trojan cities" | |