Dictionary/興信所こうしんじょKoushinjo興信所 (Koushinjo) is a Japanese noun meaning “detective agency, enquiry agency”.Meaningsnoundetective agency; enquiry agencyKanji in 興信所興entertain信faith所placeRelated words此処here何処where所place信じるto believe場所place余所another place所でby the way彼処there所がeven so自信self-confidence事務所office信用confidence