Question

a fire - watcher is: an individual who can fight fires and perform fire - training duties in the case of a fire hazard a specially piece of equipment that notifies welders if there is too much flammable gas in the atmosphere an automated sprinkler system a fire extinguisher that works on all kinds of fires

Explanation:

A "fire-watcher" refers to a person responsible for monitoring fire hazards and taking action. The term "watcher" indicates an individual, distinguishing it from equipment or systems.

Answer:

An individual who can fight fires and perform fire-training duties in the case of a fire hazard