KanjiJLPT N1
Wing

wing, plane, flank

Mnemonic

A bird spreads its feathers in a different formation — not scattered randomly, but locked together like armored plates. This different arrangement transforms a simple limb into a mighty wing that slices through the sky.
Additional thoughts
Picture feathers snapping into a unique, rigid pattern unlike soft down — that special arrangement IS the wing. Different structure = flight capability.
Quick recall
Feathers locked in a different formation become a soaring wing.

Details

The keyword for 翼 is wing. This kanji refers to the wing of a bird or aircraft, representing the broad, outstretched structure used for flight. By extension, it can also symbolize flanks or sides of a formation, as in the left and right wings of a military or political group. The character conveys the idea of soaring, support, and the ability to take flight.
On'yomi
よく
Kun'yomi
つばさ