off
verb
°In a direction away from the speaker or object.
"He drove off in a cloud of smoke."
°Into a state of non-operation; into a state of non-existence.
"Please switch off the light when you leave."
adjective
"All the lights are off."
°rotten.
"This milk is off!"
preposition
°(colloquial) Out of the possession of.
°Away from or not on.
synonyms: away, out