20
zero(noun, adjective, pronoun, informal, puny)
16
naught(noun, adjective, pronoun, blank, zero)
15
nothing(noun, adjective, pronoun, blank, puny)
15
cipher(noun, nothingness, zero, nothing, nonexistence)
13
aught(noun, absence, zero, archaism)
11
zilch(noun, pronoun, slang, blank, zip)
10
nix(noun, adjective, slang, base, absence)
10
nought(noun, adjective, blank, zero, nonentity)
10
null(noun, absence, nonexistence)
9
nada(noun, blank, zip, zero, nonentity)
8
blank(noun, adjective, zip, zero, nonentity)
8
goose egg(noun, expression, idiom, blank, zip)
8
none(adjective, pronoun, zero, nonexistent)
8
zip(noun, base, blank, zero, nonentity)
7
cypher
7
nonentity(noun, blank, zero, nothing, nonexistence)
7
nothingness(noun, nonexistence, inexistence)
6
nihil(noun, adjective, zero, nonexistent)
6
void(noun, adjective, zero, nonexistence)
5
nullity(noun, blank, zero, nonentity, nothing)
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APASmart Define. (2015). nil thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/nil/thesaurus/synonyms
ChicagoSmart Define. 2015. "nil thesaurus" https://smartdefine.org/nil/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, nil thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/nil/thesaurus/synonyms>.
MLASmart Define. "nil thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/nil/thesaurus/synonyms>