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

ガラス綿[garasumen] glass wool
引き綿[hikiwata] floss silk
海綿[kaimen] sponge
強綿薬[kyoumenyaku] guncotton
絹綿[kinuwata] silk floss

原綿[genmen] raw cotton
晒し木綿[sarashimomen] bleached cotton cloth
真綿[mawata] silk floss
脱脂綿[dasshimen] absorbent cotton
南京木綿[nankinmomen] nankeen (cloth)