Alternative form of watchnight.

For the period of an entire night.

(Britain) bachelor party

A school, typically used for the purpose of continuing education with classes held predominantly in the evening to accommodate students with typical day shift work schedules.

during the previous day’s nighttime; during the night before today

(often used adverbially) The evening or night immediately before the present.

The night of the day after the present day.

During the night of the day after the present day.

(film) A cinematographic technique in which a crew films in a high-contrast situation, typically in the early morning or late afternoon, with a blue filter, causing the scene to look as if it were shot in moonlight.

(cinematography) In the daytime, with a blue filter, causing the scene to look as if it were shot in moonlight.