watchman

A man who is employed to stand guard or keep watch.

A person set to keep watch; specifically, a sentinel; a guard; one who guards the streets of a city by night; also, one set to keep guard, as over a building in the night, to protect it from fire or thieves.

One set to watch; a person who keeps guard; a guard; a sentinel.

Specifically, one who guards a building, or the streets of a city, by night.

The European dor.