公こう侯こう伯はく子し男だんこうこうはくしだんMeanings1nounduke, marquis, count, viscount and baron (five ranks of nobility in Japan; 1869-1947)historical termHistorical term for the five peerage ranks established in the Meiji era and abolished in 1947. Often used in historical or explanatory contexts.See also: 公爵 · 侯爵 · 伯爵 · 子爵 · 男爵