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

金盃[kinpai] gold cup
銀盃[ginpai] silver cup
寿盃[juhai] toasting
酒盃[sakazuki] sake cup
乾盃[kanpai] toast

天盃[tenpai] emperor's gift cup
別盃[beppai] farewell cup
組み盃[kumisakazuki] a nest of sake cups
返盃[henpai] offering a cup (of sake) in return
献盃[kenpai] offering a drink