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Word of the Day Tuesday, June 9, 2026

faultline

/fɔːltlaɪn/ noun · British & US
Valid in UK
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What does faultline mean?

noun

A crack or fracture in the Earth's crust, often associated with earthquakes, or a line of weakness in a system or relationship.

Example

"The geologists studied the faultline that ran through the city, warning of the potential for a devastating earthquake."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for faultline

Antonyms of faultline

Rhymes with faultline

Etymologically related