직업 occupation

My occupation is a singer. 

His occupation is a writer. 

His occupation is writing.

He is a writer by occupation. 

occupation 은 어떤 사람이 시간을 들이는 주요활동이라는 의미이다. 그래서 

My occupation is singing. 나의 직업은 노래하기이다. 

My occupation is writing.  나의 직업은 저술하기이다. 

  

My mother's occupation is selling insurance.

Her occupation was dentistry.

He made teaching his vocation  그는 교사를 직업으로 삼았다.

He thinks that acting is his calling. 그는 배우를 그의 천직이라 생각한다/