DEFINITIONS
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night-night

[ interjection nahyt-nahyt, -nahyt; adverb nahyt-nahyt ]
/ interjection ˈnaɪtˈnaɪt, -ˌnaɪt; adverb ˈnaɪtˌnaɪt /

interjection

Informal. good night.

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Words nearby night-night

night watch, the, night watchman, night-blind, night-blooming cereus, night-light, night-night, night-sky light, night-time, nightcap, nightclothes, nightclub

Idioms for night-night

    go night-night, Baby Talk. to go to bed or to sleep.

Origin of night-night

First recorded in 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for night-night

  • "Just a little peep at dainty Miss Mission, to say night-night," he smiled, unfastening the catch on the chronometer case.

    Gold Out of Celebes|Aylward Edward Dingle

  • Night-night, echoed Ted, as he wiggled his fingers in a funny fashion at Trouble.

    The Curlytops at Silver Lake|Howard Roger Garis

  • And ''night-night' and 'daddy' were two-year-old language to Jim.

    Joe Wilson and His Mates|Henry Lawson

British Dictionary definitions for night-night

night-night

sentence substitute

an informal word for good night
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