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