Index of English words, starting with "ni"

(1) - Nightingale (n.) A larger species (Lucinia philomela), of Eastern Europe, having similar habits; the thrush nightingale. The name is also applied to other allied species.
(2) - Nightingale (n.) A small, plain, brown and gray European song bird (Luscinia luscinia). It sings at night, and is celebrated for the sweetness of its song.

(1) - Nightlong (a.) Lasting all night.

(1) - Nightly (adv.) At night; every night.
(2) - Nightly (a.) Of or pertaining to the night, or to every night; happening or done by night, or every night; as, nightly shades; he kept nightly vigils.

(1) - Nightman (n.) One whose business is emptying privies by night.