There are a few different synonyms for the sport commonly known as "American handball." In some regions, it may be referred to simply as "handball." In other areas, it may be known as "wallball," "wall handball," or even "one wall handball." These names reflect the fact that the game is often played against a wall, with players bouncing a small rubber ball and attempting to hit it in such a way that the other player cannot return it. Whatever you call it, the sport of American handball/wallball is a fun and challenging way to stay active and hone your reflexes and hand-eye coordination.