fault line

• Ligne de fracture dans la croûte terrestre où un mouvement tectonique s'est produit, ou, au sens figuré, point de faiblesse ou de division dans un système, une organisation ou des relations.

A fracture or zone of fractures in the Earth's crust where tectonic movement has occurred, or metaphorically, a point of weakness or division in a system, organization, or relationship.

1. Geological fractureB2formal

   A fracture or zone of fractures in the Earth's crust where tectonic movement has occurred.

   ligne de faille

   • The San Andreas Fault line is one of the most studied in the world.
   • Earthquakes often occur along active fault lines.
   • Geologists mapped the fault line to predict future seismic activity.

2. Division or weaknessC1formal

   A fundamental division or point of weakness in a system, organization, or relationship.

   ligne de fracture

   • The political fault line between the two parties deepened after the debate.
   • There is a clear fault line in the company's management structure.
   • Social fault lines often emerge during times of economic crisis.