打 - HIT the Nail with Your Hand

Readings & Meanings:

う（つ）

ダ

strike, hit, to beat

Common Usage:

打撃

打つ

Examples:

母の死に彼女は大きな打撃を受けた。

最後に彼は逆転ホームランを打った。

Translations:

The death of her mother was a big blow for her.

In the end, in a sudden reversal of fortune, he hit a home run.

Radical:

手 radical on the left combines with the same "straight" nail picto- we saw in 頂 on the right to mean "hit straight on."

References:

http://www.kanjinetworks.com/tnetwork/TANG.html#TANG46
http://www.thejapanesepage.com/kanji/kanji/e.htm