1 a connection between A and B;a connection with/to sth an association or relationship between two or more people or things 关联；关系: Is there any connection between the two organizations? 这两个组织之间是否有关联呢？What's your connection with Brazil? Have you worked there? 你跟巴西有什么关系？你是不是在那里工作过？

2 a place where two wires, pipes, etc join together （两根电线、管子等的）接合点，接合面: The radio doesn't work. There must be a loose connection somewhere. 这收音机不响了。一定是哪里接头松了。

3 a bus, train, plane, etc that leaves soon after another arrives （提供中转服务的）联运交通工具: Our bus was late so we missed our connection. 我们的公共汽车误点了，赶不上接乘的班车。