こうこうはくしだん 公侯伯子男 LinksSentence search for 公侯伯子男Sentence search for こうこうはくしだんKanji details for 公, 侯, 伯, 子 and 男Edit in JMdict Noun1. duke, marquis, count, viscount and baron (five ranks of nobility in Japan; 1869-1947)Historical term, See also 公爵, See also 侯爵, See also 伯爵, See also 子爵, See also 男爵 Discussions Log in to talk about this word.