This is the 886th most frequent Afrikaans word.
rob
Seal (the marine animal).
Here, 'rob' is used as a noun to refer to the animal, a seal.
Die rob swem vinnig in die see.
The seal swims quickly in the sea.
In this context, 'rob' is used as a noun meaning cover or sleeve of an object, such as a book.
Hy het die boek se rob verruil om sy eie te hou.
He exchanged the book's cover to keep his own.
Here, 'rob' is used as a verb meaning to empty in a slightly mischievous context.