HanjaWatch: 水 (water)

– a man swimming (flailing) in WATER

as in su-wimming, obviously 😉

수요일 – Wednesday

음료수 – beverages
식수 – drinking water
냉수 – cold water
온수 – hot water

산수 – landscape (lit. mountains and water)
생수 – natural/spring water

호수 – lake [man with a hat sailing on the water]
홍수 – flood [man on higher ground because of high water]