trust·​bust·​er | \ ˈtrəs(t)-ˌbə-stər How to pronounce trustbuster (audio) \

Definition of trustbuster

: one who seeks to break up business trusts specifically : a federal official who prosecutes trusts under the antitrust laws

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Other Words from trustbuster

trust-busting \ ˈtrəs(t)-​ˌbə-​stiŋ How to pronounce trustbuster (audio) \ noun

Examples of trustbuster in a Sentence

Recent Examples on the Web Europe has led the charge with antitrust investigations, and Margrethe Vestager, the region’s top trustbuster, recently vowed to take a harder line on the companies. David Mccabe,, "Lawmakers, united in their ire, lash out at big tech’s leaders," 29 July 2020 The Competition and Markets Authority, the U.K.’s trustbuster, is getting tougher too. Chris Hughes | Bloomberg, Washington Post, "Dealmakers Will Test Johnson’s Open-Market Cred," 16 Dec. 2019 In their brief filed with the federal appeals court, the Justice Department lawyers sounded more like corporate defense attorneys than crusading trustbusters. Steven Pearlstein, Washington Post, "America’s latest corporate takeover: The Justice Department," 19 Dec. 2019 Mergers were looked upon more kindly by trustbusters. The Economist, "How T. Boone Pickens changed corporate finance in America," 19 Sep. 2019 After years of waving through deals, shareholders and trustbusters are now getting testier again. The Economist, "Investors and regulators fall out of love with colossal deals," 6 July 2019 That’s why the Microsoft case is a cautionary tale for today’s trustbusters, too. Jay Greene, Washington Post, "Trustbusters are bypassing the biggest tech company of them all," 28 June 2019 The past two decades have seen one of the greatest waves ever as executives have sought to build corporate giants with market power over consumers, applauded by investors and enabled by trustbusters. The Economist, "Investors and regulators fall out of love with colossal deals," 6 July 2019 One hope for agency groups is that trustbusters force open the tech giants’ walled gardens. Stephen Wilmot, WSJ, "Madison Avenue’s Unequal Fight With Google," 6 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'trustbuster.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of trustbuster

1893, in the meaning defined above

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Time Traveler for trustbuster

Time Traveler

The first known use of trustbuster was in 1893

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Cite this Entry

“Trustbuster.” Dictionary, Merriam-Webster, Accessed 25 Jan. 2021.

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More Definitions for trustbuster


trust·​bust·​er | \ ˈtrəst-ˌbəs-tər How to pronounce trustbuster (audio) \

Legal Definition of trustbuster

: one and especially a federal officer who seeks to break up trusts by prosecution under the antitrust laws

Other Words from trustbuster

trust-busting \ -​tiŋ How to pronounce trustbuster (audio) \ noun

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