This is the 4315th most frequent French word.
failles
"Failles" means "flaws" or "weaknesses" in English.
Here, 'failles' refers to vulnerabilities or weaknesses
Il a trouvé des failles dans le système de sécurité.
He found weaknesses in the security system.
In this sentence, 'failles' pertains to geological fissures or faults
Les failles géologiques dans cette région sont impressionnantes.
The geological faults in this region are impressive.
The term 'failles' here indicates logical or reasoning flaws.