通問 [－问]

Jyutping tung1 man6
Pinyin tōng wèn

Definitions (CC-CEDICT)
  1. to mutually send greetings
  2. to communicate
  3. to exchange news
Definitions (Wiktionary)
  1. verb, literary
    to exchange correspondence
  2. verb, literary
    to exchange greetings
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）