Select the most appropriate one-word substitution for the given group of words.

A person who shows people their seats

usher

The most appropriate one-word substitution for "a person who shows people their seats" is usher.

The other words in the options, cameraman, watchman, and guard, do not mean the same thing.

• Cameraman is a person who operates a camera for a film or television company.
• Watchman is a person whose job is to guard a building, for example, a bank, an office building, or a factory, especially at night.
• Guard is a person who protects a place or people, or who stops prisoners from escaping.

An usher is a person who shows people to their seats in a theater, church, etc. They are often dressed in a uniform and are responsible for helping people find their seats and answering any questions they may have.