KanjiJLPT N1
Podium

podium, stage, rostrum, terrace

Mnemonic

Workers pile earth high beside the lighthouse, packing it into a grand podium. The lighthouse keeper climbs atop the earth platform to address the coastal village each stormy night. With the lighthouse beam sweeping behind him, he commands every sailor's attention from the podium.
Additional thoughts
Picture a massive mound of packed soil shaped into a formal stage right at the base of a lighthouse. The beacon's rotating light dramatically spotlights whoever stands on the earthen podium, making it feel ceremonial and important.
Quick recall
Packed earth beside the lighthouse forms a grand podium for the keeper's speeches.

Details

The keyword for 壇 is podium. This kanji refers to a raised platform or stage used for speeches, ceremonies, or religious rituals. It conveys the idea of an elevated, formal structure from which someone addresses an audience or performs a sacred act. The character is commonly associated with altars, rostrums, and ceremonial platforms in both secular and religious contexts.
On'yomi
だん、たん

Used in vocab