訓 て ・ 音 シュ
Sino-Vietnamese: thủ
A raised hand seen from the front: the three horizontal strokes are the fingers, and the long hooked vertical running through them is the wrist and forearm.
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
手を洗いましょう。 (てをあらいましょう)
Let's wash our hands.