all-night·er | \ ˈȯl-ˈnī-tər 
\
\Definition of all-nighter
: something that lasts all night specifically : an all-night study session
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More Definitions for all-nighter
all-nighter
nounEnglish Language Learners Definition of all-nighter
informal : a night during which someone works on something instead of sleeping
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Time Traveler for all-nighter
The first known use of all-nighter was in 1870
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