湍 rapids 12 strokes. Readings タン (on reading): 急湍 (きゅうたん) swift shoal はやい (kun reading) はやせ (kun reading) Components 氵 耑 山 radical mountain ⺡ radical water, left-side form of 水 而 radical and; beard Words using 湍 急湍 (きゅうたん) swift shoal Jinuma: Japanese Dictionary · Word lists