Search Dictionary
Definition of all-night

all-night

JUMP TO:

• adjective

1

Lasting, operating, or remaining open throughout the entire night.

Example

"The university library opened a new all-night study lounge for students preparing for final exams."

Synonyms
View all synonyms for all-night
Antonyms
View all antonyms for all-night

Word Nuance & Usage

The hyphenated form 'all-night' is used strictly as an attributive adjective before a noun (e.g., 'an all-night diner'), whereas the unhyphenated phrase 'all night' is used adverbially after a verb (e.g., 'studied all night').

• Nearby Words

alky
all
all right
all-night
all-nighter
all-weather
allah

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of All-night. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/all--night
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.