1. Expressions (phrases, clauses, etc.), Ichidan verb

   to raise one's hand

   生徒はあまり手を挙げません。

2. to surrender

   Idiomatic expressionusu. 手を上げる

3. to raise one's hand to someone (as a threat to strike)

   usu. 手を上げる

4. to become better (at something); to improve

   Idiomatic expressionusu. 手を上げるsee 腕を上げる

5. to throw one's hat in the ring; to volunteer; to indicate one intends to participate; to raise one's hand

   Idiomatic expressionusu. 手を挙げる

Also written 手を上げる【てをあげる】tewoageru、手をあげる【てをあげる】tewoageru