五ご等とう爵しゃくごとうしゃくMeanings1nounfive ranks of nobility (Japan, 1869-1947)historical termHistorical term referring to the peerage system established in the Meiji era, consisting of 公爵 (duke), 侯爵 (marquis), 伯爵 (count), 子爵 (viscount), and 男爵 (baron).See also: 公爵 · 侯爵 · 伯爵 · 子爵 · 男爵五ご