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nightlong

American  
[nahyt-lawng, -long, nahyt-lawng, -long] / ˈnaɪtˌlɔŋ, -ˌlɒŋ, ˈnaɪtˈlɔŋ, -ˈlɒŋ /

adjective

  1. lasting all night.

    a nightlong snowfall.


adverb

  1. through the entire night.

    Volunteer sandbag crews worked nightlong to stem the floodwaters.

nightlong British  
/ ˈnaɪtˌlɒŋ /

adjective

  1. throughout the night

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of nightlong

First recorded before 1000; Middle English; Old English nihtlang (adverb) “for the space of a night”; see night, long 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Swathed in red and white, they crammed into one corner of the century-old stadium for what amounted to a nightlong celebration.

From Los Angeles Times Sep. 3, 2025

It was the first stop on Zohran Mamdani’s nightlong mayoral campaign blitz into the robust Muslim constituency that dots New York City.

From Slate Apr. 5, 2025

Known as the Argus Array Pathfinder, it will register changes in the stars second by second, essentially making a nightlong celestial movie.

From Science Magazine Aug. 24, 2022

Saiyub ignored the numerous calls he was getting from friends and family in the village and stayed in silence beside his friend throughout the nightlong journey.

From New York Times Jul. 31, 2020

Though I followed my mother around all day, kept a nightlong vigil on her, there was nothing suspicious about her behavior.

From "Kaffir Boy: An Autobiography" by Mark Mathabane

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