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plain clothes

or plainclothes

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plural noun
clothing other than one's uniform, especially civilian clothes worn on duty by a police officer.
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Origin of plain clothes

First recorded in 1815–25

OTHER WORDS FROM plain clothes

plain-clothes, plainclothes, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use plain clothes in a sentence

British Dictionary definitions for plain clothes

plain clothes

pl n
  1. ordinary clothes, as distinguished from uniform, as worn by a police detective on duty
  2. (as modifier)a plain-clothes policeman
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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