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

This rainy, lightning-laden Saturday, though, offered a true mapping of the fault lines cloaked by Florida’s wins. — Noah White, Miami Herald, 10 Oct. 2026

Campaign fault line The war in Iran is emerging as a late-breaking fault line in Senate races across the country. — Adam Beam, AJC.com, 5 Oct. 2026

Religion is another crucial fault line in Brazil, where Catholic and evangelical voters remain politically important. — Alessandra Freitas, CNN Money, 4 Oct. 2026

Fault risk Perhaps the most surprising discovery involves the fault line itself. — Mrigakshi Dixit, Interesting Engineering, 29 Sep. 2026

Word History

First Known Use

1869, in the meaning defined above

Rhymes for fault line

• affine
• airline
• align
• aline
• assign
• baseline
• beamline
• benign
• bloodline
• bovine
• brucine
• byline