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to nullify
01
to legally invalidate an agreement, decision, etc.
Examples
The judge decided to nullify the marriage due to fraudulent claims.
His appeal was successful, and the court nullified the earlier verdict.
02
make ineffective by counterbalancing the effect of
03
to counteract or neutralize the intended or anticipated effect of something
Examples
Increased awareness about the dangers of smoking helped nullify big tobacco's marketing campaigns aimed at youth.
Stricter background checks for guns may nullify some mass shooters' ability to obtain firearms legally.
Lexical Tree
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