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.
The test flight, called SN8, ran afoul of federal regulators because the company moved forward with the launch without obtaining weather clearance from the Federal Aviation Administration. Jackie Wattles, CNN Money, 18 Dec. 2025 The good guys run afoul of a network of white supremacists who basically run the country. Bill Goodykoontz, AZCentral.com, 15 Dec. 2025 Those rules, which required automakers to make their new vehicle fleets cleaner, on average, over time, are being dialed down — which means automakers can make more big gas- and diesel-powered trucks and fewer EVs without running afoul of federal regulations. Camila Domonoske, NPR, 15 Dec. 2025 Trying to help Gary and his family, Judy and Nick run afoul of powerful businessman Milton Lynxley (David Strathairn), who has designs on expanding Tundratown. Brendan Morrow, USA Today, 8 Dec. 2025 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 21 Dec. 2025.

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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