潤 means “moisten, enrich, profit”

うるおう · uruou

Also: wet, be watered, profit by, receive benefits

Kun'yomi (Japanese reading)
うるおう, うるおす, うるむ
On'yomi (Chinese reading)
ジュン

JLPT N1 · Taught in secondary school · 15 strokes

The story

Water (氵) beside a king (王) in a gate (門): picture rain on the palace gate, everything soft and well fed. 潤う is to be moist or to prosper: skin creams promise 潤い, moisture, and a business counts its 利潤, profit.

Used in 潤い (uruoi, moisture/richness), 利潤 (rijun, profit), and 潤滑油 (junkatsuyu, lubricant)

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Readings from KANJIDIC2, © EDRDG, CC BY-SA.