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Definition of faultline

faultline

/ˈfɔːlt.laɪn/
fault · line
Plural:faultlines
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faultline Lexical Profile

faultline Game Scores & Validity

• noun

1

A line on a rock surface or the ground that traces a geological fault, where tectonic plates or sections of the Earth's crust meet and shift.

Example

"Seismologists closely monitor the major faultline running along the coast to assess earthquake risks."

2

A fundamental ideological, social, or political division or weakness that creates tension and has the potential to cause a major split or conflict.

Example

"The debate over economic policy exposed a deep faultline within the governing coalition."

Synonyms
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Antonyms
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• Nearby Words

faultless
faultlessly
faultlessness
faultline
faulty
faun
fauna

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Faultline. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/faultline
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