Submersion
Flood
noun, verbal noun, の adjective
しんすい
浸水 （しんすい） Submersion, Flood
沈没 （ちんぼつ） Sinking, Going Down, Submersion
洪水 （こうずい） Flood
水深 （すいしん） Water Depth, Depth Of Water
He Submerged his shins しん in cold water after banging them against a swing すい
A shin しん swing すい is a pool swing that Submerges your feet and shins in water.