To disallow or reject.
To assert that something is not true.
To disclaim connection with, responsibility for, etc.; to refuse to acknowledge; to disown; to abjure; to disavow.
To refuse to give or grant something to someone.
To take something away from someone; to deprive of.
To prevent from scoring.
To decline, to refuse to do or accept.
To contradict or deny.
To forbid, to refuse to allow, give, or permit.
To gainsay, to oppose in speech (and by extension writing).