noun, noun or participle which takes 'suru', intransitive verb
telecommunications; correspondence; communication
Refers to exchanging messages or signals, especially by radio, telegraph, or other technical means. Often used in contexts like amateur radio, military, or aviation communication.
アマチュア無線で世界中の人と交信するのが趣味です。
My hobby is communicating with people around the world via amateur radio.
Communication between the control tower and the pilot was lost.