Definitions

1. verb

to make something invalid or ineffective, especially by declaring it to be so

“The judge’s decision would nullify the contract, making it invalid.”

2. verb

to reduce or eliminate something, especially a problem or a threat

“The new policy will nullify the impact of climate change on our community.”

3. noun

the act of making something invalid or ineffective

“The nullification of the treaty led to a diplomatic crisis between the two countries.”

4. noun

a declaration or statement that something is invalid or ineffective

“The court issued a nullification of the previous ruling, allowing the company to appeal.”