Trojan

the Trojan war.
A citizen of the city of Troy (Ilium) as described by Homer.
A type of malicious software that masquerades as a useful program or file to gain the user's trust and be opened is called a Trojan horse or trojan. Once opened, it executes malicious computer code.
A Trojan asteroid is a minor planet occupying the L₄ or L₅ equilateral Lagrangian points of a Sun-planet system, especially the Sun-Jupiter system.
Trojan moons are also known in the Saturn system.
A member of one of the various sports teams at the University of Southern California.
Trojan is also a video game released by Capcom for the NES.
Trojan is a popular brand of condoms.
Trojan was a British car manufacturer.
A heavy metal band.
A suburb of Johannesburg, South Africa
A British reggae and ska music record label, see Trojan Records, named after a Leyland truck.
A type of Skinhead, named after the record label. (See above)
A battery manufacturer [1].
An ultraviolet water treatment company [2].
The North American T-28 Trojan, a US military trainer aircraft
The AL.60F Trojan, an Italian utility aircraft
Trojan Nuclear Power Plant, a decommissioned nuclear power plant in Rainier, Oregon
One of the 4 types of character-classes that one can choose in the MMORPG Conquer Online