adv · noun · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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/naɪts/
US:Recorded audio is listed in the source snapshot.
rhymes with -aɪts
CMU ARPABET:N AY1 T S
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adv
Meaning 1
At night (during night-time, especially on a regular basis).
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
Examples
I work nights, my brother only afternoons, and my son days.
Meaning relationships
Synonyms: by night
Antonyms: days
2
noun
Meaning 2
plural of night
Definition source: English Wiktionary via Wiktextract
Usage: form-of, plural
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
History
Etymology
Inherited from Middle English nightes, from Old English nihtes (“at night, by night”), equivalent to night + -s (adverbial genitive suffix). Cognate with Old Frisian nachtes, Old Saxon nahtes, German nachts (all “nights, at night”).
See the etymology of the corresponding lemma form.