主しゅ業ぎょう

noun

main profession; primary occupation

Refers to one's principal job or calling, as opposed to a side job or hobby.

• 彼かれの主しゅ業ぎょうは教きょう師しだが、週しゅう末まつはカフェを手伝てつだっている。

  His main profession is teaching, but he helps out at a café on weekends.