OVERRULE

[verb] [T] - to decide against (a decision that has already been made, or a suggestion, idea, etc.) because you have the official authority to do soIn tennis, the umpire can overrule the line judge if they think that a ball has been incorrectly called in or out.The school governors have overruled the head teacher/the head teacher's proposals."Objection overruled," said the judge.