手を挙げる

Meaning

1. expv1
   to raise one's hand
2. expv1
   to surrender
3. expv1
   to raise one's hand to someone (as a threat to strike)
4. expv1
   to become better (at something); to improve
5. expv1
   to throw one's hat in the ring; to volunteer; to indicate one intends to participate; to raise one's hand

Example sentences

• 合図に手をあげることにしましょう。

  I'll raise my hand as a signal.

• トムはすぐに手をあげるんだ。

  Tom is quick to turn violent.

• いつも手を挙げるのに、先生は当ててくれないんだ。

  I always raise my hand, but the teacher never calls on me.