OPERATION

n. 1 function, functioning, working, running, performance, action, motion, movement The operation of the internal combustion engine is very simple 2 manipulation, handling, direction, running, control, management, managing; manoeuvring The operation of the aircraft is under the control of the captain 3 undertaking, enterprise, venture, project, affair, deal, procedure, proceeding, (day-to-day) business, transaction Who will be in charge of the operation while the president is abroad? 4 Often, operations action, manoeuvre, mission, task, campaign, exercise The generals directed military operations from positions close to enemy lines 5 in or into operation. functioning, operative, in effect, in force, operating, operational, functional, effective, efficacious Is the factory in operation yet? The new regulations went into operation last week