verbs
direct or control; projects, businesses, etc.
"She is running a relief operation in the Sudan"
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"
handle and cause to function
"do not operate machinery after imbibing alcohol"; "control the lever"
perform a movement in military or naval tactics in order to secure an advantage in attack or defense
happen
"What is going on in the minds of the people?"
is a type of (narrower)
come to pass
"What is happening?"; "The meeting took place off without an incidence"; "Nothing occurred that seemed important"
keep engaged
"engaged the gears"
perform surgery on
"The doctors operated on the patient but failed to save his life"