| Word | Definitions | Synonyms |
|---|---|---|
| nil | (noun) a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential | Synonyms: aught, cipher, cypher, goose egg, nada, naught, nix, nothing, null, zero, zilch, zip, zippo |
| nilgai | (noun) large Indian antelope; male is blue-grey with white markings; female is brownish with no horns | Synonyms: blue bull, Boselaphus tragocamelus, nylghai, nylghau |
| nilpotent | (adjective) equal to zero when raised to a certain power | - |