nixes; nixed; nixing
US, informal
: to refuse to accept or allow (something) : to say no to (something, such as a suggestion or plan)
We quickly nixed [=rejected] his idea.
US, informal + somewhat old-fashioned
: no entry 1
—used to show that you disagree with or will not allow something —often + on
They put a nix on our plan. [=they rejected our plan]
Cite this Entry
“Nix.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/nix. Accessed 19 Jun. 2026.
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