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Meaning of plainclothesman

plain•clothes•man

Pronunciation: (plān'klōz'mun, -man", -klōz'-), [key]
— pl. -men
  1. a police officer, esp. a detective, who wears ordinary civilian clothes while on duty.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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