The scent of something is the pleasant smell that it has. Flowers are chosen for their scent as well as their look. = fragrance
If something scents a place or thing, it makes it smell pleasant. Jasmine flowers scent the air Scent your drawers and wardrobe with your favourite aromas
Specifically, the odor left by an animal on the ground in passing over it; as, dogs find or lose the scent; hence, course of pursuit; track of discovery