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

亜熱帯[anettai] subtropics
悪熱[onetsu] fever following a chill
稲熱[imochi] rice blight
稲熱病[imochibyou] rice blight
炎熱[ennetsu] sweltering heat

温熱[onnetsu] hot fever
温熱性[onnetsusei] thermal
下熱[genetsu] lowering fever
加熱[kanetsu] heating
火熱[kanetsu] heat (from a flame)

お歯黒[ohaguro] tooth blackening
暗黒期[ankokuki] eclipse period
暗黒時代[ankokujidai] Dark Ages
暗黒大陸[ankokutairiku] Dark Continent (i.e. Africa)
黒い[kuroi] black

黒い霧[kuroikiri] thick fog
黒くする[kurokusuru] to blacken
黒ずむ[kurozumu] to blacken
黒っぽい[kuroppoi] dark