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.
Their study found that southern portions of the San Andreas fault and parts of the adjacent San Jacinto fault line are locked and loaded to their highest stress levels in 1,000 years — increasing the probability of a significant earthquake. Kasha Patel, CNN Money, 19 June 2026 How do the fault lines rupture? Janet Loehrke, USA Today, 19 June 2026 For Black Americans, this technology lands on centuries-old fault lines, ones that have come under recent attacks from state, federal and local lawmakers who are working to upend the accurate telling of history. Richard Fowler, Forbes.com, 18 June 2026 From the desert of Palm Springs to the San Francisco Bay Area, the 800-mile fault line snakes through much of California and has remained relatively calm in recent years. Hunter Sowards, CBS News, 17 June 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

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Cite this Entry

“Fault line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fault%20line. Accessed 23 Jun. 2026.

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