Patroller

Part of speech: noun

Pronunciation: /pəˈtɹəʊlə/

Definitions

1. One who regularly walks, drives, or moves through a designated area to maintain security or order
2. An individual assigned to monitor and observe a specific location to ensure safety and prevent incidents
3. A person who makes rounds in a defined zone to watch for problems and uphold rules

Etymology: "Patroller" is a plain English formation: the noun "patrol" with the agent suffix "-er," meaning one who performs the action. A patrol is a group or person going around an area to keep watch, and a patroller is the watchman making those rounds. The base word "patrol" came into English from French "patrouiller," a verb meaning to paddle or wade through mud, which in turn is related to "patte," a paw. The sense of moving through an area on foot to keep watch developed later, so the word's origin lies in splashing through muck rather than in guarding anything.

Synonyms: watchman, guard, sentinel, monitor, observer