1. (

• operate ,
• run ,

) direct or control; projects, businesses, etc.; "She is running a relief operation in the Sudan" ;

2. (

• function ,
• work ,
• operate ,
• go ,
• run

) perform as expected when applied; "The washing machine won't go unless it's plugged in"; "Does this old car still run well?"; "This old radio doesn't work anymore" ;

3. (

• operate ,
• control

) handle and cause to function; "do not operate machinery after imbibing alcohol"; "control the lever" ;

4. (

• manoeuver ,
• maneuver ,
• manoeuvre ,
• operate

) perform a movement in military or naval tactics in order to secure an advantage in attack or defense ;

5. (

• engage ,
• mesh ,
• lock ,
• operate ,

) keep engaged; "engaged the gears" ;

6. (

• operate_on ,
• operate

) perform surgery on; "The doctors operated on the patient but failed to save his life" ;

1. (

• operating

) involved in a kind of operation; "the operating conditions of the oxidation pond" ;

2. (

• operational ,
• in_operation ,
• operating ,

) being in effect or operation; "de facto apartheid is still operational even in the `new' African nations"- Leslie Marmon Silko; "bus service is in operation during the emergency"; "the company had several operating divisions" ;