無線通信士 むせんつうしんし Meanings Noun radio communication operator See also: 無線通信 (むせんつうしん). Kanji 無 without. Read as ム. 線 line. Read as セン. 通 pass through. Read as ツウ. 信 trust. Read as シン. 士 man. Read as シ. Example sentences 船長は無線通信士に遭難信号を打つように命令した。The ship's captain ordered the radio operator to send a distress signal. Jinuma: Japanese Dictionary · Word lists