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English definition of “fault line”

fault line

noun [C] uk   us  

fault line noun [C] (CRACK)

a fault (= a break in the Earth's surface)Earthquakes and volcanic eruptions

fault line noun [C] (PROBLEM)

a problem that may not be obvious, which could cause something to fail: The fault lines of imperfect peace deals are already showing.Causing difficulties for oneself or others
(Definition of fault line from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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