/trʌstˌbʌstər/ – noun
Definition: Người hoặc chính sách chống độc quyền trong lĩnh vực kinh doanh.
A more thorough explanation: a person or organization who works to break up groups of companies that violate antitrust laws (=the body of law that regulates business activities and markets, especially agreements and practices that limit competition)
Example: As Microsoft looks to new markets, it has an advantage in its battle with trustbusters.