a king, especially one who is not East Asian or was East Asian in pre-imperial times; in China and Vietnam, generally a king before Qin Shi Huangdi who invented the title 皇帝 (kōtei, “huangdi; emperor”); in Korea, one of the many kings before the Korean Empire which was modeled after Japan's; in Japan, one of the rulers before Emperor Jinmu

king / monarch

king

(archaic) an ancient Korean king

(shogi) free king, queen (a piece in chu shogi, dai shogi and larger shogi variants)

(obsolete) Oakland (a city in Alameda, California, United States) / (historical) Ryukyuan royal administration (government)

crown prince

rajah / (historical) Head of the Ryukyu Domain

viceroy; one who governs a country, province, or colony as the representative of a monarch.

the King of the Underworld; either Hades/Pluto in ancient Greco-Roman mythology or King Yama in Hindu-Buddhist belief.