This is the 4360th most frequent French word.
frein
Brake.
Here, 'frein' is used to denote a vehicle's brake system component.
Le conducteur a appuyé sur le frein pour éviter la collision.
The driver pressed the brake to avoid the collision.
In this sentence, 'frein' metaphorically represents something that prevents or restricts actions.
Elle a mis un frein à sa dépense excessive pour économiser.
She put a brake on her excessive spending to save.
Here, 'frein' symbolizes a restraining factor between competitive entities.