御中[onaka] stomach
御話中[ohanashichuu] busy (phone)
アル中[aruchuu] alcoholism
π中間子[paichuukanshi] pi meson
暗中[anchuu] in the dark

暗中摸索[anchuumosaku] groping in the dark
意中[ichuu] one's mind
意中の女[ichuunoonna] sweetheart
井の中の蛙大海を知らず[inonakanokawazutaikaiwoshirazu] parochial
一日中[ichinichijuu] all day long

寒武利亜[kanburia] Cambria (old name for Wales)
亜寒帯[akantai] subarctic zone
悪寒[okan] chill
寒い[samui] cold (e.g. weather)
寒がり[samugari] sensitivity to cold

寒がる[samugaru] to be bothered by coldness
寒さ[samusa] coldness
寒害[kangai] damage from cold weather
寒気[samuke] chill
寒ぞら[samuzora] cold weather

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

泳ぐ[oyogu] to swim
泳法[eihou] swimming style
遠泳[enei] long-distance swimming
横泳ぎ[yokooyogi] sidestroke (swim.)
競泳[kyouei] swimming race

水泳[suiei] swimming
側泳[sobaei] side stroke
背泳ぎ[seoyogi] backstroke (swim.)
平泳ぎ[hiraoyogi] breaststroke (swimming)
力泳[rikiei] powerful swimming