悪水[akusui] undrinkable water
井戸水[idomizu] well water
一衣帯水[ichiitaisui] (being separated only by a) narrow strip of water
一水[issui] current (of water)
溢水[issui] inundation

飲水量[insuiryou] amount of drinking
飲料水[inryousui] drinking water
烏の行水[karasunogyouzui] quick bath
雲水[unsui] itinerant priest
塩化水素[enkasuiso] hydrogen chloride

泳ぐ[oyogu] to swim
泳法[eihou] swimming style
遠泳[enei] long-distance swimming
横泳ぎ[yokooyogi] sidestroke (swim.)
競泳[kyouei] swimming race

水泳[suiei] swimming
側泳[sobaei] side stroke
背泳ぎ[seoyogi] backstroke (swim.)
平泳ぎ[hiraoyogi] breaststroke (swimming)
力泳[rikiei] powerful swimming