消しょう息そくを絶たつ

expression, godan verb (-tsu)

stop communicating; disappear; go missing

Used when someone ceases all contact and their whereabouts become unknown. Often implies a sudden or complete loss of communication.

• 彼かれは海かい外がいに渡わたったまま消しょう息そくを絶たった。

  He went abroad and has not been heard from since.

• 連れん絡らくが途と