steep or high mountain
嶄 centers on a mountain that is notably steep or high, emphasizing its sharp, towering character.
嶄 combines 山 (mountain) with 斬, which likely contributes the sound and may suggest a sharply cut, steep shape. The exact historical development is uncertain.
A mountain 山 with 斬 (cut, slash) beneath it: imagine a mountain so steep it looks like it was cut sharply upward.
For ザン, picture a steep mountain where the last climber is a fan named Zan: Zan -> ザン, and he's the only one who can scale the sharp peak.
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sheer; precipitous