Harry bellowed, as somewhere out of sight Hermione screamed, and Harry heard innumerable objects crashing to the floor on the other side of the destabilized wall: He pointed his wand at the rampart, cried, "Finite!" and it steadied.
There are no more uses of "rampart" in the book.
Show samples from other sources
they stormed the ramparts of the city
The invaders were unable to penetrate the outer ramparts.