This is the 410th most frequent Chinese word.
台
"台" means "platform," "stage," "tower," or a measure word for machines or equipment.
Here, "台" means "stage," referring to a raised platform used for performances.
2. 那位演员正在舞台上表演。
The actor is performing on the stage.
Here, "台" is again a measure word, specifying a unit for appliances like a washing machine.
3. 我买了一台新的洗衣机。
I bought a new washing machine.
Here, "台" is a measure word used for machines or devices like televisions and computers.