Definitions

1. noun

A person who pretends to be someone else, especially in order to deceive others.

“The company’s CEO was accused of being an impostor, as he had no experience in the field.”

2. noun

A person who assumes a false identity or pretends to have a particular status or position.

“The impostor was caught at the party, trying to pass himself off as a wealthy businessman.”

3. verb

To pretend to be someone else, especially in order to deceive others.

“She was accused of impostoring her way into the exclusive club.”