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


Informal. good night.

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 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.

British Dictionary definitions for 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