Meanings
Usage patterns
〈物〉を台に乗せるto place something on a stand/platform
I placed the vase on the stand.
台に立つto stand on a platform/stage
The judge stood on the platform and gave an explanation.
〈数〉台の〈物〉counter placed before the noun with の (e.g. 'three cars')
Two cars are parked in the lot.
〈数字〉円台in the ... yen range (price level)
You can buy this apple for around 100 yen.
Expressions
台無しになるbe ruined; be spoiled; come to nothing