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

口辺単純疱疹[kouhentanjunhoushin] cold sore
水疱瘡[mizubousou] chickenpox
膿疱[nouhou] pustule
疱疹[houshin] herpes
疱瘡[housou] smallpox

水疱[suihou] blister
帯状疱疹[taijouhoushin] shingles
汗疱[aseawa] dyshidrosis
膿疱疹[nouhoushin] empyesis