洗う【あらう】
to wash, to cleanse, to rinse, to inquire into, to investigate, to purify (one's heart), to lave (e.g. shore), to wash over (e.g. deck), to sweep
洗濯【せんたく】
washing, laundry, relaxing, taking a break
洗脳【せんのう】
brainwashing
洗練【せんれん】
polish, refinement
洗剤【せんざい】
detergent, cleanser, cleaning agent, washing material
洗濯機【せんたくき】
washing machine, (clothes) washer
洗浄【せんじょう】
washing, cleansing, cleaning, laundering, cleansing (one's mind and body)
洗濯物【せんたくもの】
laundry, the washing
手洗い【てあらい】
washing one's hands, water (or basin, etc.) for washing one's hands, restroom, lavatory, toilet, hand-washing (laundry, etc.)
水洗【すいせん】
washing with water, rinsing, flushing
洗面【せんめん】
washing one's face
洗面所【せんめんじょ】
washroom, bathroom
洗面器【せんめんき】
wash basin, wash bowl (incl. portable bowl in a public bath)
洗い物【あらいもの】
things to be washed (esp. dishes and laundry)
皿洗い【さらあらい】
washing-up, dish-washing
洗髪【せんぱつ】
washing one's hair, having a shampoo
洗い上げる【あらいあげる】
to finish washing, to wash well, to investigate thoroughly
洗礼【せんれい】
baptism, christening, initiation (into a society, group, etc.), baptism, one's first experience of something, baptism (by fire, etc.)
合成洗剤【ごうせいせんざい】
synthetic detergent
洗顔【せんがん】
face-washing