void

sense 1: declare invalid; "The contract was annulled"; "avoid a plea"
invalidate annul quash void avoid nullify

sense 2: clear (a room, house, place) of occupants or empty or clear (a place, receptacle, etc.) of something; "The chemist voided the glass bottle"; "The concert hall was voided of the audience"
void

sense 3: take away the legal force of or render ineffective; "invalidateas a contract"
invalidate void vitiate

sense 4: excrete or discharge from the body
evacuate void empty