Watchman
Watchman , noun
1.
One set to watch; a person who keeps guard; a guard; a sentinel.
2.
Specifically, one who guards a building, or the streets of a city, by night.
Collocations (4)
Watchman beetle (Zoology) , the European dor.
Watchman's clock , a watchman's detector in which the apparatus for recording the times of visiting several stations is contained within a single clock.
Watchman's detector or Watchman's time detector , an apparatus for recording the time when a watchman visits a station on his rounds.
Watchman's rattle , an instrument having at the end of a handle a revolving arm, which, by the action of a strong spring upon cogs, produces, when in motion, a loud, harsh, rattling sound.