all-night·​er ˈȯl-ˈnī-tər How to pronounce all-nighter (audio)
: something that lasts all night
specifically : an all-night study session

Word History

First Known Use

1870, in the meaning defined above

Time Traveler
The first known use of all-nighter was in 1870

Dictionary Entries Near all-nighter

Cite this Entry

“All-nighter.” Dictionary, Merriam-Webster, Accessed 27 Jan. 2023.

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