KanjiJLPT N4
Pedestal

pedestal, a stand, counter for machines and vehicles

Mnemonic

A giant mouth gapes open, forming the base of a pedestal. A tent is pitched right on top of its flat tongue. Performers climb onto the pedestal and the mouth amplifies their every word while the tent shelters them above.
Additional thoughts
Mouth (口) sits at the bottom as the foundation; tent (厶) perches on top. Picture a carnival stage: a huge open mouth as the base with a tent canopy rising above it.
Quick recall
A mouth forms the base of a pedestal with a tent pitched on its tongue.

Details

The keyword for 台 is pedestal. This kanji refers to a raised platform or stand upon which something is placed or displayed. It conveys the idea of a base or support structure that elevates an object, and by extension it is used as a counter for machines, vehicles, and other large equipment. The character also carries the broader sense of a foundation or stage from which something operates or is presented.
On'yomi
だい、たい
Kun'yomi
うてな、われ、つかさ