[interjection nahyt-nahyt, -nahyt; adverb nahyt-nahyt] /interjection ˈnaɪtˈnaɪt, -ˌnaɪt; adverb ˈnaɪtˌnaɪt/ interjection 1. Informal. good night. Idioms 2. go night-night, Baby Talk. to go to bed or to sleep. sentence substitute 1. an informal word for good night nursery talk, “good-night,” 1896; form nighty-night is attested from 1876. interjection An amiable parting salutation at night (1896+)
- Night nurse
noun 1. a nurse whose duty is to look after a patient or patients during the night
noun, Ecclesiastical. 1. the office for matins.
noun night person (first form 1846+, second 1868+)