/tæks ||; tæks/noun [C,U] (a) tax (on sth) the money that you have to pay to the government so that it can provide public services 税；税款: income tax 所得税There used to be a tax on windows. 过去装窗子要纳税。 tax verb [T] (often passive 常用于被动语态) Alcohol, cigarettes and petrol are heavily taxed. 对酒、烟和汽油的课税很重。