naught vs nil

naught and nil both are nouns.

Word	Noun	Adjective	Verb	Adverb
naught	Yes	No	No	No
nil	Yes	No	No	No

As nouns, naught and nil are synonyms defined as:

naught and nil: a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential

Other synonyms of naught include aught, cipher, cypher, goose egg, nada, nix, nothing, null, zero, zilch, zip, zippo.

naught (noun)	nil (noun)
complete failure	a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential
a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential