안녕
annyeong · TOPIK 1
hi (informal)
👋 安寧 = peace + calm; the greeting literally wishes you peace
안녕 comes from the Sino-Korean 安寧, where 安 means peace and 寧 means calm. Saying it is a short way of asking whether someone is at peace, so it works for both hi and bye among friends. The polite form adds 하세요: 안녕하세요.