arm / skill

(moon/organ) + (crown) + (evening) + (fingerprint)
★★★☆☆
12 strokes
JERK

Onyomi

WAN

Captain Hook had only WAN arm.

Mnemonic

Your arm is an organ you use for putting on your crown in the evening. Plus arms have fingerprints at the ends!

Kunyomi

うで arm. Also, to be good at something, as in, "xxxの 腕 が いい!" "She's good at xxx!"
★★★☆☆

Jukugo

腕章(わんしょう)

armband ★☆☆☆☆
(arm / skill) + (emblem / chapter) = 腕章 (armband)

armband. Anytime you see an unemployed grand-dad with an armband, you can be sure he will poke his nose in someone's business and try to wreck their fun:"No smoking!" "No bicycle parking!" "No hammocks!"

腕力(わんりょく)

muscle/force - literal, not figurative. ★☆☆☆☆
(arm / skill) + (strong) = 腕力 (muscle/force - literal, not figurative.)