Definition of "op"

(informal) Clipping of operation.  examples

(informal) Clipping of operator.  quotations

1. (informal) An amateur radio operator.  examples

2. (Internet) An operator on IRC, who can moderate the chat channel, ban users, etc.  examples

(Internet slang, chiefly in the plural) Clipping of opinion.

(chiefly attributive) Ellipsis of op art.  examples

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

Alternative letter-case form of OP.  examples

Alternative letter-case form of OP.  examples

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

(Australia, informal, transitive) To buy (something) from an op shop.  examples

(Australia, informal, intransitive) To shop at op shops.  examples