Dic: grievance

[~ against sb] something that you think is unfair and that you complain or protest about.

• Parents were invited to air their grievances (=express them) at the meeting.
• He had been nursing a grievance against his boss for months.
• Does the company have a formal grievance procedure (=a way of telling sb your complaints at work)?

... OALD via Daum

• have[hold, bear, harbor] a grievance against a person …에게 불만을 가지다
• remedy a grievance 불만을 해소하다. satisfy a grievance
• The committee heard the grievance. (출처: BBI Word Combi) 위원회가 그 고충사안을 심리했다.
• Finally filed a grievance. (출처: 웹검색 예문) 결국 불만을 접수했어요.
• The union filed a grievance with the South Korean Labor Relations Committee on May 18 after USFK announced it might cut as many as 1,000 jobs. (출처: The Korea Herald)
  노조는 주한미군이 일자리를 1,000개까지 줄인다고 발표한 이후 5월 18일에 중앙노동위원회에 쟁의조정을 신청했다.
• The loss of employment is the chief grievance. (출처: 동아 프라임 한영사전) 실직은 주요 원성의 대상이다

.... Daum