cancel

a notation cancelling a previous sharp or flat

postpone indefinitely or annul something that was scheduled; "Call off the engagement"; "cancel the dinner party"; "we had to scrub our vacation plans"; "scratch that meeting--the chair is ill"

make up for; "His skills offset his opponent's superior strength"

declare null and void; make ineffective; "Cancel the election results"; "strike down a law"

remove or make invisible; "Please delete my name from your list"

make invalid for use; "cancel cheques or tickets"