It's a masculine singular noun, meaning it refers to a specific good thing. It's often used as part of a phrase like "le bon vin" (the good wine) or "le bon choix" (the good choice).
It's a masculine singular noun, meaning it refers to a specific good thing. It's often used as part of a phrase like "le bon vin" (the good wine) or "le bon choix" (the good choice).