KanjiJLPT N2
Ashes

ashes, puckery juice, cremate

Mnemonic

At the base of a towering cliff, someone built a roaring fire to stay warm through the night. By dawn, the flames had consumed every scrap of wood. All that remained was a pale mound of ashes, dusting the rocky ledge like gray snow. The wind carried the ashes over the cliff's edge.
Additional thoughts
Picture the cliff sheltering the fire like the radical encloses it in the kanji. Fire beneath a cliff overhang — morning reveals only soft gray ashes.
Quick recall
A fire under a cliff burns out overnight, leaving nothing but ashes.

Details

The keyword for 灰 is ashes. This kanji refers to the powdery residue left after something has been burned, such as wood or coal. It can also refer to the gray color associated with ash, and by extension, it conveys a sense of something that has been reduced or spent. The character captures the idea of the aftermath of fire, the fine, powdery substance that remains when combustion is complete.
On'yomi
かい
Kun'yomi
はい

Used in kanji

Used in vocab