This is the 4017th most frequent French word.
carton
A cardboard box or a piece of cardboard.
Here, 'carton' is used to refer to a cardboard box, a common object for storage or moving items.
Je vais ranger ces livres dans un carton.
I will store these books in a cardboard box.
In this context, 'carton' idiomatically means 'a big hit' referring to great success in an endeavor, such as the commercial success of an album.
Il a fait un carton avec son dernier album.
He had a huge success with his last album.
This usage of 'carton' again refers to cardboard boxes, highlighting the context of environmental responsibility.