The phrase "carts off" typically means to remove or take away something. Its antonyms would be words or phrases that convey the opposite of this meaning, such as "bring in," "introduce," "add," "deliver," or "return." These words describe actions that involve bringing something to a particular location, rather than taking it away. For example, if someone brings in a new piece of furniture to a room, they are introducing something rather than carting it off. Similarly, if a deliveryman brings a package to your door, they are adding something to your possessions. In short, the antonyms for "carts off" are words that imply that something is being added or delivered rather than removed.