Answer: OVERRIDE

AnswerCrossword Clue
OVERRIDEDisregard.
overrideto ride over
overrideto prevail over; overrule
OVERRIDEReverse, as a veto
OVERRIDENullification
OVERRIDEFunction-canceling setting
OVERRIDEAnnul
OVERRIDETrample down
OVERRIDESupersede
OVERRIDEShow who's boss
OVERRIDEConquer, in a way.
OVERRIDEVeto
OVERRIDEDisregard arbitrarily.
OVERRIDEOutweigh.
OVERRIDEAnnul, as a veto.
OVERRIDEPreempt
OVERRIDENullify
OVERRIDECountermand
OVERRIDESet aside
OVERRIDEGive the thumbs-down to
OVERRIDEVeto a veto