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good night

an expression of farewell used in parting at nighttime or when going to sleep.
Origin of good night
1325-75; Middle English


[goo d-nahyt] /ˌgʊdˈnaɪt/
a farewell or leave-taking:
He said his good-nights before leaving the party. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for good night
  • Natural, organic bed linens can help you to get a good night's sleep.
  • Most people need only leave enough time in their busy schedules to get a good night's sleep.
  • New results challenge the view that a good night's sleep can leave behind a dense bloom of brain cells in the morning.
  • But they did much better the next morning after getting a good night's sleep.
  • To study the brain waves of a good night's sleep, scientists invited volunteers to snooze in the lab.
  • Have a good night, and thank you for the conversation.
  • Before going to sleep he called her and wished her good night.
  • When tested on new facts, people remember them better after a good night's sleep than after a short break.
  • On a good night, he'd get a page written, and he'd be a few hundred words closer to finishing.
  • Of course, s/he did not go gentle into that good night.
British Dictionary definitions for good night

good night

sentence substitute
a conventional expression of farewell, or, rarely, of greeting, used in the late afternoon, the evening, or at night, esp when departing to bed
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
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Slang definitions & phrases for good night

good night


An exclamation of surprise, irritation, emphasis, etc: Good night! Must you chew that gum so loud?

[1880s+; a euphemism for good God]

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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Idioms and Phrases with good night

good night

Expression of farewell used when parting at night or when going to sleep, as in He stood at the door, saying good night to each of the departing guests, or Mother came to tuck the children in and kiss them good night. [ Late 1300s ]
Exclamation of surprise or irritation, as in Good night, Joe!—You can't mean what you said, or Good night, Anne—it's time you learned how to throw a ball. [ Late 1800s ]
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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