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.
An active fault line known as the Ramapo Fault runs from Pennsylvania, through New Jersey, and into New York, and produces a number of typically small earthquakes each year. Jesse Zanger, CBS News, 10 Mar. 2026 While only time will tell how the war is ultimately perceived, there is no denying the rapidly growing fault line between our two political parties, especially on foreign policy. Douglas Schoen, Oc Register, 9 Mar. 2026 The first one is really looking at tectonic plates, or fault lines, volcanoes, and underwater phenomenon that really intersect with how drilling, energy extraction, or military testing really converge in this sort of industrial ambition. Lisa Deaderick, San Diego Union-Tribune, 8 Mar. 2026 The proposal comes as conflict in the Middle East escalates and tensions over Taiwan persist, amid a broader rise in global geopolitical fault lines. Evelyn Cheng, CNBC, 5 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 15 Mar. 2026.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster