without authority, to usurp, to monopolize, to be good at
Pronunciation
shàn
Explanation
Left: hand 扌, right: 亶 (cover 亠, rotate 回, sun rise 旦)
Mnemonic
(The rotatable blind [= jalousie] at the window shall be closed during the night:) The hand that turns the cover, before the sunrise, does this: unauthorized.
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