nil vs naught

nil and naught both are nouns.

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

As nouns, nil and naught are synonyms defined as:

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

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

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