Used adjectivally as the past participle of the verb "own".
Definitions
Belonging to a particular owner; in the legal possession of someone rather than being rented or leased. Only owned equipment may be stored in the locker rooms.
(slang) Thoroughly defeated, dominated, or humiliated. By the end of the debate, the opposition was completely owned.
Synonyms
owned by
in someone's possession
Internet slang exclamation signalling that someone has been decisively defeated or embarrassed.
Definitions
(slang) An exclamation indicating that someone has been decisively defeated, dominated, or proven wrong. "Owned!" he shouted after scoring the winning goal.