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

臥薪嘗胆[gashinshoutan] going through thick and thin to attain one's objective
薪水[shinsui] fuel and water
薪炭[shintan] wood and charcoal
薪拾い[takigihiroi] firewood gathering

薪割[makiwari] hatchet
薪能[takiginou] noh theater performed at night by a fire
薪小屋[makigoya] woodshed