What is the meaning of nullify?

Declare invalid.
- usage: "The contract was annulled"; "void a plea"
- synonyms: invalidate, annul, quash, void, avoid
Show to be invalid.
- synonyms: invalidate
Make ineffective by counterbalancing the effect of.
- usage: "Her optimism neutralizes his gloom"; "This action will negate the effect of my efforts"
- synonyms: neutralize, neutralise, negate

|15 years ago|2.1k views|share |citing

APA	WordNet. (2010). nullify. Retrieved September 20, 2026, from http://smartdefine.org/nullify/definitions/1298089
Chicago	WordNet. 2010. "nullify" http://smartdefine.org/nullify/definitions/1298089 (accessed September 20, 2026).
Harvard	WordNet 2010, nullify, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/nullify/definitions/1298089>.
MLA	WordNet. "nullify" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/nullify/definitions/1298089>

Alternative definitions by