13
nothing(noun, absence, zero, emptiness, none)
12
zero(noun, informal, absence, zero, nothing)
11
naught(noun, zero)
11
negative(verb, interjection, stop, cut, accept)
11
nil(noun, adjective, absence, nonexistent)
10
cipher(noun, zero)
10
veto(noun, verb, stop, decline, accept)
10
nay(adverb, interjection, negative, rebuff, affirm)
10
no(noun, adverb, interjection, negative, rebuff)
10
zilch(noun, slang, absence, zero)
9
no way(expression, interjection, negative, rebuff, disapproval)
8
aught(noun, absence, archaism)
8
goose egg(noun, expression, idiom, zero)
8
nada
8
nope(adverb, interjection, informal, affirm, no)
8
null(noun, absence, zero)
8
reject(verb, check, decline, accept, disregard)
7
disallow(verb, stop, cut, decline, reject)
7
nixie(noun, demon, zero)
7
nought(noun, zero)
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APASmart Define. (2015). Nix thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/nix/thesaurus/synonyms
ChicagoSmart Define. 2015. "Nix thesaurus" https://smartdefine.org/nix/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, Nix thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/nix/thesaurus/synonyms>.
MLASmart Define. "Nix thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/nix/thesaurus/synonyms>