An evening before a typical school day; normally a Sunday, Monday, Tuesday, Wednesday or Thursday night.

(dated) A person whose occupation it was to collect the contents of chamber pots (faeces) in the morning from domestic households, principally in the 18th and 19th centuries.

(In both the 12-hour clock and the 24-hour clock) The start of the tenth hour of the day; 9:00 a.m. (09:00).

(idiomatic, informal) Stay awake throughout the night, usually when working or studying.

(Britain) bachelor party

For the period of an entire night.

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.

Alternative form of watchnight

Alternative form of watchnight.

A river in North America flowing to the north from Lake Erie to Lake Ontario and including the Niagara Falls.