overnight
Proposed by a contributor, not yet supported by evidence.
Also seen as: overnights · overnighting · overnighted
Sense 1
During or throughout the night, especially during the evening or night just past.
Adverb
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
In a very short (but unspecified) amount of time.
Adverb
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 3
Occurring between dusk and dawn.
Adjective
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 4
Complete before the next morning.
Adjective
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “overnight” mean?
During or throughout the night, especially during the evening or night just past.
Is “overnight” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.