What does OPERATE mean?

verb

1. direct or control; projects, businesses, etc.“She is running a relief operation in the Sudan”
2. perform as expected when applied“The washing machine won't go unless it's plugged in”
3. handle and cause to function“do not operate machinery after imbibing alcohol”
4. perform a movement in military or naval tactics in order to secure an advantage in attack or defense
5. happen“What is going on in the minds of the people?”
6. keep engaged“engaged the gears”
7. perform surgery on“The doctors operated on the patient but failed to save his life”