nullify
NUL-uh-fyeverbMeaning to make legally void; to cancel out
Memory hook NULL-ify: make it NULL, worth ZERO. Dev’s goal flies in, but the referee blows her whistle and waves it off: offside. The goal now counts for zero; she has nullified it.
A missing signature nullified the contract.
In context Dev scored twice, but a penalty nullified the second goal, and the game ended in a tie.
Similar cancel, void, invalidate, negate
Opposite validate, confirm
From Latin nullus, “none,” + -ify: to make into nothing.