私し服ふく警けい官かんMeaningsNoun1. plainclothes police officerKanji used私private服clothes警to police (something)官bureaucratComposed of私し服ふくordinary clothes (i.e. non-uniform); plain clothes; civilian clothes; casual wear; mufti; plainclothes police officerNoun警けい官かんpolice officer; policeman; constableNounExamples1私し服ふく警けい官かんが終しゅう始し大だい統とう領りょうの身しん辺ぺんを固かためていた。The private detectives accompanied the President everywhere.