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

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 During the next five years, Arnold became the country’s greatest trustbuster, issuing nearly as many indictments as had been brought since the Sherman Act was passed. Dan Kaufman, The New Yorker, 17 Aug. 2021 On the menu today: the Fed’s surprising hawkishness, the FTC’s new trustbuster, the anti-Amazon industry, and an evaluation of Congress’s recent antitrust proposals. Daniel Tenreiro, National Review, 17 June 2021 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,, 29 July 2020 The Competition and Markets Authority, the U.K.’s trustbuster, is getting tougher too. Chris Hughes | Bloomberg, Washington Post, 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, 19 Dec. 2019 Mergers were looked upon more kindly by trustbusters. The Economist, 19 Sep. 2019 After years of waving through deals, shareholders and trustbusters are now getting testier again. The Economist, 6 July 2019 That’s why the Microsoft case is a cautionary tale for today’s trustbusters, too. Jay Greene, Washington Post, 28 June 2019 See More

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.

First Known Use of trustbuster

1893, in the meaning defined above

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Time Traveler for trustbuster

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The first known use of trustbuster was in 1893

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Dictionary Entries Near trustbuster



trust certificate

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Cite this Entry

“Trustbuster.” Dictionary, Merriam-Webster, Accessed 23 May. 2022.

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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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