1. weekend 指“周末”，在5天工作制的国家，指星期六和星期日；在6天工作制的国家，指星期日，与weekday（周日）相对，为可数名词。如：

We must go and have a weekend there.

We spend alternate weekends at our country cottage.

2. 表示“在周末”，英语可用 at/on the weekend 或at/on weekends（用介词 at 为英国英语，用 on 为美国英语），但习惯上不说 in the weekend 或 in weekends。如：

We usually do our shopping at the weekend.

They like to go ballooning on the weekend.

Traffic on the roads is heaviest at weekends.

The library is closed on weekends.

3. 在美国英语中可省略其前的介词，即把weekends用作副词。如：

He works weekends.

I go yachting most weekends in the summer.

4. 若不是表示“在周末”，则可根据情况与其他介词搭配。如：

The weather ought to improve after the weekend.

Tom is always going away for weekends.

Why don’t you and I go away for the weekend?

The weather is stormy and will remain so over the weekend.

Could you oblige me with five pounds until the weekend?

5. 当weekend 与 this, that, last, next, every等搭配时，其前不用介词at或on。如：

We are expecting guests this weekend.

Accidents due to driving at high speed were very common that weekend.

Tomorrow’s difficult. I’d rather yon came next weekend.

Peggy was pretty rude to my family last weekend.

We go boating on the lake every weekend.