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daylong

American  
[dey-lawng, -long] / ˈdeɪˌlɔŋ, -ˌlɒŋ /

adjective

  1. during the entire day; lasting all day.

    a daylong trip.


daylong British  
/ ˈdeɪˌlɒŋ /

adjective

  1. lasting the entire day; all day

"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 daylong

First recorded in 1850–55; day + 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.

It also came after sunrise, just as practicing Muslims began the daylong fast during the Islamic holy month of Ramadan.

From The Wall Street Journal • Feb. 28, 2026

The 2026 Roundtable met on Jan. 5 in New York for a daylong discussion of the investment backdrop and the 11 panelists’ latest picks.

From Barron's • Jan. 16, 2026

He has played Santa for years at various locations in Southern California, including Riverside’s Mission Inn, but his daylong volunteer stint as Altadena’s Christmas Tree Lane Santa is dearest to his heart.

From Los Angeles Times • Sep. 10, 2025

Researchers analyzed a dataset of daylong audio recordings collected in English-learning infants' home environments at ages 6, 10, 14, 18 and 24 months.

From Science Daily • May 30, 2024

The rocking motion of daylong walking transferred itself to the floor.

From "Atonement" by Ian McEwan

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