good night

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interjection

an expression of farewell used in parting at nighttime or when going to sleep.

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His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Origin of good night

Middle English word dating back to 1325–75

Other definitions for good night (2 of 2)

good-night

[ good-nahyt ]

/ ˌgʊdˈnaɪt /

noun

a farewell or leave-taking: He said his good-nights before leaving the party.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use good night in a sentence

And let me say: those baffles make the telescope ugly, like its own mama puts a bag over its head before kissing it goodnight.
Using Black Holes to Measure Dark Energy, Like a BOSS|Matthew R. Francis|April 13, 2014|DAILY BEAST
He was alone, wrapped at six in the morning, and the rest of us had wrapped earlier and were like, “Well, bye, goodnight!”
Alison Brie on ‘Community’s’ New Beginning, Dan Harmon’s Return, Nicolas Cage, and More|Marlow Stern|January 3, 2014|DAILY BEAST
After the performance, Howard gave her a hug and politely bid her goodnight.
Terrence Howard, Star of ‘The Butler,’ Is an Actor With a Dark Past|Allison Samuels|August 20, 2013|DAILY BEAST
He would send her and his daughters stick figures of himself in bed with Barney the dog to say goodnight or good morning.
George W. Bush Emerges From the Shadows to Open Presidential Library|Eleanor Clift|April 23, 2013|DAILY BEAST

Sometimes the littlest moments, like a goodnight kiss, are the most important.
Fenton Bailey and Randy Barbato’s Favorite World of Wonder Clips (VIDEO)|Fenton Bailey, Randy Barbato|February 5, 2013|DAILY BEAST
But consolation came at bedtime; Margaret received her with open arms when she went to wish her goodnight.
The Daisy Chain|Charlotte Yonge
"I thought I'd come in and say goodnight," he began, with a laugh.
The Three Partners|Bret Harte
Bidding goodnight to the few friends who remained to see them off, they headed homeward.
Watch Yourself Go By|Al. G. Field
Bidding the old gunsmith goodnight, they returned to the hotel, meeting Lieut. Murphy on the way.
The Ranger Boys and the Border Smugglers|Claude A. Labelle
Saying goodnight to the men who would carry on in her absence, she went down the back stairs to the street.
Ghost Beyond the Gate|Mildred A. Wirt

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

Other 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]

good night

Origin of good night

Other definitions for good night (2 of 2)

Words related to good night

How to use good night in a sentence

British Dictionary definitions for good night

Other Idioms and Phrases with good night