御手洗い[otearai] toilet
異洗浄[isenjou] stomach pumping
一洗[issen] thoroughly wash away
灰洗い[akuarai] scouring
乾燥洗濯[kansousentaku] dry cleaning

丸洗い[maruarai] washing a kimono (or futon, etc.) without taking it apart
再洗礼[saisenrei] baptism by sprinkling
皿洗い[saraarai] washing-up
皿洗い機[saraaraiki] dish-washer (machine)
手洗[tearai] washing one's hands

せん状骨[senjoukotsu] scaphoid bone (in wrist near thumb)
遺骨[ikotsu] remains
化骨[kakotsu] ossification
会厭軟骨[eennankotsu] epiglottis
がい骨[gaikotsu] skeleton

雁骨[kariganebone] scapula
気骨[kikotsu] (moral) backbone
侠骨[kyoukotsu] chivalrous spirit
胸骨[kyoukotsu] breastbone
筋骨[kinkotsu] muscles (sinews) and bones