Definition from Wiktionary, the free dictionary
- (geology) The line formed by the intersection of the plane of a fault with the surface of the Earth
- (by extension) A minor split (in public opinion etc) that may develop into something larger
2016 October 22, Rami G Khouri, “Lebanese oligarchy preserves its interests once again”, in Aljazeera:
- Yet the process may lead to new fault lines and resentments across the notoriously unstable Lebanese political system whose 18 different confessional groups share all levels of power.