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

透き[geki] gap
透間[sukima] crevice
見え透く[miesuku] to be transparent
見透かす[misukasu] to see through
失透[shittou] devitrification

滲透[shintou] permeation
沁透る[shimitooru] to soak through
透破抜き[suppanuki] exposure
透す[toosu] to stick through
透る[tooru] to go by