The phrase "pounded away" refers to a forceful, repetitive action. There are many synonyms that can convey a similar meaning, depending on the context in which the phrase is used. Some alternatives include: hammered, struck, thumped, beating, drumming, bashing, pummeling, pelting, battering, hitting, and smacking. These synonyms are all suitable replacements for "pounded away" and can add variety to your writing or speech. They are particularly useful when used in action scenes or descriptions of mechanical work or construction. Choosing the right synonym can help to convey the intensity and forcefulness of the action, making it a powerful tool for writers and speakers alike.