Night Definition

nīt

noun

The period from sunset to sunrise.

Webster's New World

This period considered as a unit of time.

For two nights running.

American Heritage

This period considered from its conditions.

A rainy night.

American Heritage

The period between dusk and midnight of a given day.

Either late Thursday night or early Friday morning.

American Heritage

The evening following a specified day.

Christmas night.

Webster's New World

Synonyms:

Antonyms:

Antonyms:
day

pronoun

(paganism) The goddess of the night in Heathenry.

Wiktionary

adjective

Of, for, or at night.

Webster's New World

Active, working, or in use at night.

Webster's New World

Working during the night.

The night nurse.

American Heritage

Active chiefly at night.

Night prowlers.

American Heritage

Occurring after dark.

Night baseball.

American Heritage

Synonyms:

Synonyms:
nocturnal
nightly

interjection

Short for good night.

Night all! Thanks for a great evening!

Wiktionary

verb

To spend a night (in a place), to overnight.

Wiktionary

Other Word Forms of Night

Noun

Singular:

night

Plural:

nights

Idioms, Phrasal Verbs Related to Night

Origin of Night

From Middle English night, nyght, niȝt, naht, from Old English niht, neht, nyht, neaht, næht (“night"), from Proto-Germanic *nahts (“night"), from Proto-Indo-European *nókÊ·ts (“night"). Cognate with Scots nicht, neicht (“night"), West Frisian nacht (“night"), Dutch nacht (“night"), Low German Nacht (“night"), German Nacht (“night"), Danish nat (“night"), Swedish natt (“night"), Icelandic nótt (“night"), Latin nox (“night"), Greek νύχτα (nýchta, “night").

From Wiktionary
Middle English from Old English niht nekw-t- in Indo-European roots

From American Heritage Dictionary of the English Language, 5th Edition