Definition

Noun: A police detective who wears ordinary civilian clothing while on duty, rather than a uniform, typically to avoid being easily identified or to blend in during investigations.

Usage

This word specifically refers to a law enforcement officer whose role is investigative work and who performs this duty in non-uniform attire. It emphasizes the contrast with uniformed officers.

Examples

• The plainclothesman discreetly observed the suspect from across the street.
• A plainclothesman was assigned to infiltrate the gambling ring.
• The store owner didn't realize the customer was a plainclothesman until he showed his badge.

Advanced Usage

• The term can sometimes carry a connotation of working undercover or in a covert manner, though it is distinct from a deep-cover operative. A plainclothesman's primary identifier is the lack of a uniform while on official duty.

Variants and Related Words

• Plainclothes (adjective): Describing police or detectives who wear civilian clothes.
• Detective (noun): An investigator, often a police officer. This is a broader category that includes plainclothesmen.
• Undercover officer (noun): An officer who conceals their identity entirely, often using a false name and background, which is a more secretive role than a typical plainclothesman.

Synonyms

• Detective
• Investigator
• Police detective
• (Informal) Gumshoe

Antonyms

• Uniformed officer
• Patrolman
• Beat cop

Noun

1. a detective who wears civilian clothes on duty