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

A person who pretends to be what he is not

Imposter

The most appropriate one-word substitution for "a person who pretends to be what he is not" is imposter.

• Hutch is a small, enclosed shelter for animals.
• Den is a wild animal's lair or resting place.
• Herd is a group of animals that live and move together.

The word imposter comes from the Latin word "imposter," meaning "to put on." An imposter is a person who pretends to be someone they are not, often for the purpose of deceiving others. They may pretend to have a different identity, job, or status than they actually have.