Definition of 手を打つ
- (exp, v5t) to take measures (in face of events being anticipated)
この問題は早急に手を打つ必要がある。
Something must be done immediately to deal with this problem. - to come to an agreement (in bargaining, etc.); to strike a bargain
ケーキ一個で手を打ってあげるよ。
I'll do it for a cake. - to clap one's hands together
私はぽんと手を打った。
I clapped my hands.