After the independence of Korean Peninsula, the translation 'Emperor' meaning Emperor in English was not inherited, but the title 'Nihon Kokuo' (Nichio) was used, and following that, 'Koshitsu' (Imperial family) was called 'Oshitsu' (King's family), and 'Kotaishi' (Crown Prince) was called 'Oseishi' (heir of King).
朝鮮半島独立後は、英語で天皇を意味する「Emperor」の訳語を踏襲せず「日本国王」（日王）という称号を用いてこれに倣い「皇室」を「王室」、「皇太子」を「王世子」と呼んだ。