粉 powder

米 (rice / America) + 分 (understand / divide / minute)
★★★☆☆
10 strokes
DUH

Onyomi

FUN

It's FUN to snort powder!

Mnemonic

If you keep dividing rice kernels smaller and smaller, you will wind up with powder.

Kunyomi

こな powder
★★★☆☆

Jukugo

花粉症(かふんしょう)

hay fever ★★☆☆☆
花 (flower) + 粉 (powder) + 症 (symptom) = 花粉症 (hay fever)

小麦粉(こむぎこ)

flour ☆☆☆☆☆ KUNKUN
小 (small size) + 麦 (barley) + 粉 (powder) = 小麦粉 (flour)

Lookalikes

Meaning Hint Radical
粉 powder MINUTE 分
粒 grain STAND 立
紛 ambiguous STRING 糸

If you STAND on top of grain,
you'll grind it to powder in one MINUTE
STRING is too ambiguous to be a good mnemonic!