(computing) An instruction or operation that has no effect; a null operation.

(LGBT, of a transgender or transsexual person) Having chosen not to undergo sex reassignment surgery.

(LGBT) A transgender or transsexual person who has chosen not to undergo sex reassignment surgery.

simple past tense and past participle of ope

Third-person singular simple present indicative form of ope

present participle of ope

(Internet slang) Alternative letter-case form of OP (“original post, original poster”).

(transitive, Internet) To promote (an IRC user) to an operator.

(Australia, informal, transitive) To buy (something) from an op shop. / (Australia, informal, intransitive) To shop at op shops.

(slang, among criminal gangs) Alternative form of opp (“opponent; opposition”).