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plain clothes

plain clothes

9 3.2
Ordinary clothes that let people in uniform blend in
  • noun
  • /pleɪn kloʊðz/
: ropa de civil
  • Adam Styler, plain-clothes cop, works narcotics in Queens.
  • a man in plain clothes
  • plain-clothes officers
  • wearing plain clothes

I'm going to wear plain clothes, plain white T-shirt, jeans.

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Examples

  • I say again, there's a plain-clothes officer in the building!

  • The police officer was working in plain clothes to blend in with the crowd.

  • What are you doing in plain clothes?

  • The police were in plain clothes.

    Blog text (34)
  • Two men in plain clothes claiming to be police officers came to the victim's door.

    Blog text (2)
  • Detective Derm, 46, stands outside in plain clothes.

    Fiction book (2000)
  • An hour later, the door opened again and a tall man in plain clothes, whose face had been cut from a series of acute angles, entered.

    Fiction book (2002)
  • In the room at the police station, there was an inspector in plain clothes, a man of about forty years of age, slightly bald, with hard eyes.

    Fiction book (2001)
  • Cunningham was just glad he wore plain clothes and not a uniform and worked in Oxnard right now instead of L.A.

    Fiction book (1993)
  • Lena, the waitress, sits next to the plain-clothes cop who holds the indent-a-kit.

    Fiction book (1991)

Synonyms

street clothes
vsplain clothes
8 1.8

Everyday clothes you wear in public, not a uniform

is ordinary clothing especially when worn by people who usually wear a uniform
civilian clothing
vsplain clothes
8 2.0

Clothes that people who are not in the military or police wear

is ordinary clothing used by those who usually wear a uniform for work
plainclothes
vsplain clothes
1 4.4

Ordinary clothes worn instead of a uniform to avoid being recognized as a police officer

is general ordinary wear for uniformed people, not necessarily for concealment
civilian dress
vsplain clothes
1 3.6

Ordinary clothes worn by people who are not soldiers, police, or religious leaders

is the ordinary clothing worn by people who typically wear a uniform
civilian garb
vsplain clothes
1 4.2

Everyday clothes that are not uniforms or work clothes

is ordinary wear specifically noted when used by formerly uniformed persons

Antonyms

892 1.7

A set of clothes that members of one group wear to look the same

How Formal

formal look
1 3.4
uniform
892 1.7
business suit
17 1.8
plain clothes
9 3.2
leisure wear
1 3.2

Surface Forms

plain clothes singular
plain clothes plural

Morphology

plain + clothes

The meaning 'ordinary clothing' is directly composed from 'plain' (simple, unembellished) + 'clothes' (wearable items), so a B1 learner who knows both words will readily infer the phrase refers to non‑special/ordinary dress. The specific pragmatic use for people who normally wear uniforms (e.g., police 'in plain clothes') is a predictable extension of 'plain' meaning 'not uniform' and thus does not make the expression idiomatic.

Etymology

Plain clothes comes from the idea that someone who usually wears a uniform puts on simple plain clothes so they do not stand out. That's why the term means 'ordinary clothing' worn by police or soldiers 'to blend in'.