n.

1. 传达；交流，交往；通信；传染[U]
   The satellite has become an important means of communication.

   卫星已成为一个重要的通讯工具。

   Communication between old and young people is not so difficult as you think.

   青老年之间的思想交流没有你想的那样困难。

2. 讯息；情报[C]
3. 通讯（交通）设施[P1]
   Our city has excellent communications with all parts of the country.

   我们城市具有完备的交通网与全国各地联系。

n.

1. the action of communicating.
   ▸a letter or message containing information.
2. (communications) the means of sending or receiving information, such as telephone lines or computers.
3. (communications) the means of travelling or of transporting goods, such as roads or railways.