This word is acceptable for play in the UK dictionary that is being used in the following games:

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n. Light, fuel, or food for the whole night.

adj. lasting, open, or operating through the whole night

"At least I would be able to go home and get some sleep, a luxury unavailable to Alan, Sam, and many other senior Bear Stearns people, not to mention the bankers and bankruptcy crews who had settled in for an allnight ordeal."

long   

three-day    twenty-four-hour    all-day    four-hour    hole-in-the-wall    day-long    mom-and-pop    open-air    late-night    week-long