fault line

noun

: something resembling a fault : split, rift
… a major conceptual fault line in foreign policy …Morton Kondracke

Examples of fault line 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 deepening energy crisis triggered by the US-Israel war with Iran has thrust energy security back onto the political stage in European countries — and widened fault lines along with it. Natasha Bracken, semafor.com, 2 Apr. 2026 Mere weeks into the Iran war, the conflict has laid bare many of the fault lines upon which the AI industry has built its foundations. Rafi Schwartz, TheWeek, 31 Mar. 2026 Most often, quake swarms are caused by fluids — typically water — interacting with fault lines, the federal agency said. Don Sweeney, Sacbee.com, 24 Mar. 2026 Now, similar fault lines are reemerging. Jeremy Gorner, Chicago Tribune, 23 Mar. 2026 See All Example Sentences for fault line

Word History

First Known Use

1869, in the meaning defined above

Time Traveler
The first known use of fault line was in 1869

Browse Nearby Words

Cite this Entry

“Fault line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fault%20line. Accessed 3 Apr. 2026.

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