通信 tōngxìn to correspond (by letter, email etc)
to correspond (by letter, email etc); to send or receive messages through telecommunications
How to remember 通信: 通 pass through + 信 letter = to correspond (by letter, email etc).
Characters
How it is used
- To communicate/correspond, or telecom communications - 保持通信 (bǎochí tōngxìn) to stay in contact, 通信技术 (tōngxìn jìshù) communications technology.
- Originally exchanging letters; now covers all signal-based communication (5G 通信).
- Near-identical to 通讯; 通信 leans toward the act/technology of communicating.