1 [U] the act of sharing or exchanging information, ideas or feelings 通讯；交流；沟通: Radio is the only means of communication in remote areas. 无线电是边远地区唯一的通讯工具。We are in regular communication withour head office in New York. 我们与纽约总部经常保持联系。

2 communications [pl] the methods that are used for travelling to and from a place or for sending messages between places 交通；通讯系统；沟通途径: The telephone lines are down so communications are very difficult. 电话线失灵，通讯甚为困难。

3 [C] (formal 正式) a message 消息；音讯: a communication from head office 由总部发来的信息