English edit

 
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Etymology edit

trust +‎ buster

Noun edit

trustbuster (plural trustbusters)

  1. (US) A person or entity responsible for breaking up trusts or monopolies.
    • 2023 June 21, “Why Joe Biden’s trustbusters have fallen short of their ambitions”, in The Economist[1], →ISSN:
      America’s top trustbusters mean to make their policing presence felt. Lawyers, bankers and financiers now “recognise that there are cops on the beat…that we’re vigorously looking to protect the American public from illegal mergers,” says Lina Khan, chair of the Federal Trade Commission (FTC), which enforces consumer-protection and competition laws.