This is the 284th most frequent French word.
feu
"Feu" means "fire" in English.
In this sentence, 'feu' refers to a literal fire, often used to symbolize warmth or an active flame.
Le feu brûle dans la cheminée.
The fire burns in the fireplace.
Here, 'feu' is part of the expression 'feu vert,' which metaphorically represents permission or approval.
Il a obtenu son feu vert pour le projet.
He got the green light for the project.
In this context, 'feu' refers to a traffic light, indicating the signal system used in transportation.