弾
ダン, タン, ひ.く, ひ.き, はず.む, たま, はじ.く, はじ.ける, ただ.す, はじ.きゆみ

bullet, twang, flip, snap

JLPT1 G7 S12 F853

As per 單# (weapon) + 弓 bow → *projectile* sent flying by a weapon → *bullet*; *shell*; *cannonball*. Also, *rebound*; *bounce*; *bound* (← actions of a round projectile) → *spring (up)*, as well as *winded*, *stimulated*, *excited/in high spirits* and *free with money* (← frenzied activity).

[Full Kanji Etymology List]