1
: in or into conflict with
ran afoul of the law
2
: in or into collision or entanglement with

Examples of afoul of in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
That raises the risk of service interruptions for companies that run afoul of US government requests. Bloomberg, Mercury News, 19 June 2026 The groups argued that the site of the garden runs afoul of federal laws and has not been authorized by Congress. Swapna Venugopal Ramaswamy, USA Today, 17 June 2026 Here’s what crew members and frequent flyers want passengers to know about navigating bathrooms on airplanes without getting stuck in a line, blocking service or running afoul of the seat belt sign. Ryan Brennan, Miami Herald, 13 June 2026 That exemption allows the major pro leagues to feature salary caps, luxury taxes, maximum salaries and other blatant restraints on earning opportunities that might run afoul of antitrust law since those rules are bargained with unions and thus exempt from antitrust scrutiny. Michael McCann, Sportico.com, 10 June 2026 See All Example Sentences for afoul of

Word History

Etymology

afoul "fouled, tangled," from a- entry 1 + foul entry 1

First Known Use

1819, in the meaning defined at sense 1

Time Traveler
The first known use of afoul of was in 1819

Browse Nearby Words

Cite this Entry

“Afoul of.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/afoul%20of. Accessed 24 Jun. 2026.

Kids Definition

afoul of

preposition
1
: in or into collision or entanglement with
one ship ran afoul of the other
2
: in or into conflict with
they fell afoul of the law
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