night watch

noun

1. a watch or guard kept during the night.
2. a person or the persons keeping such a watch.
3. Usually night watches. the periods or divisions into which the night was divided in ancient times.

noun

1. a painting (1642) by Rembrandt.

noun

1. a watch or guard kept at night, esp for security
2. the period of time the watch is kept
3. a person who keeps such a watch; night watchman