• 洗面せんめん — washing one’s face
• 洗濯せんたく — laundry
• 洗剤せんざい — detergent
• 洗礼せんれい — baptism
• 水洗すいせん — flushing / rinsing
• 洗あらう — to wash

洗 combines the water radical 氵 with the phonetic 先 (セン), evoking thorough washing with water. It covers both physical cleaning and symbolic purification (e.g., 洗礼).

A high-frequency daily-life verb and cornerstone of basic vocabulary.

手てを 洗あらって ください。
Please wash your hands.

毎日まいにち 洗濯せんたくを しています。
I do laundry every day.