ㄊㄨㄥtōngㄨㄣˋwèn

  1. 互相往來訪問禮記·曲禮》:不通。」

  2. 互通音訊佩文韻府··楊維楨·》:別來南北不通玉樹春風。」

to mutually send greetings, to communicate, to exchange news