good night

¹

interjection

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

good-night

²

[ good-nahyt ]

noun

1. a farewell or leave-taking:

   He said his good-nights before leaving the party.

good night

sentence substitute

1. a conventional expression of farewell, or, rarely, of greeting, used in the late afternoon, the evening, or at night, esp when departing to bed

Word History and Origins

Origin of good night¹

Middle English word dating back to 1325–75

Example Sentences

There’s no shame in wanting to get a good night of sleep when you’re sleeping outside, either surrounding yourself with plush blankets and pillows or stringing up some vibey lights.

From Outside Online

He would always stop by my bunk before going to sleep to say good night and say, “tomorrow is ours” with a smile.

From Washington Blade

On a good night workers on the staff are knee deep in cash, collecting as much as $70,000 in small bills.

From The Daily Beast

There was Capote, and Good Night and Good Luck—a brilliant picture that year.

From The Daily Beast

To everyone, I want to say to you Good night, and to see you tomorrow morning bright and early.

From The Daily Beast

He visits Alig regularly and chronicles their meetings on his Blackbook.com blog, Good Night Mr. Lewis.

From The Daily Beast

Then drawing on her gloves she offered me her hand, with a frank, “Good-night, Mr. Scott,” and walked out.

From The Daily Beast

"Come and say good night," said Aunty Rosa, offering a withered cheek.

From Project Gutenberg

The suggestion seemed a likely one, so I interrupted the flow of Elmer's troubled thoughts to say good-night, and went out.

From Project Gutenberg

But this small fear was immediately dissipated when she ran in after bidding Amy good-night.

From Project Gutenberg

They entered the house at once with a quiet “good-night” to the door-keeper, and were followed by the thief and David.

From Project Gutenberg

Belle smiled up at him and moved her check to the edge of her table as Darry rather grimly bade her good-night.

From Project Gutenberg