Hammering away refers to the act of persistently and vigorously working towards a particular goal. However, there are other ways to express this concept. Here are some synonyms for hammer away: labor, toil, strive, grind, hustle, push, force, press, persevere, and slog. These words indicate the effort and determination required to achieve success. While they all convey similar meanings to hammer away, each has its own connotations and nuances. For instance, toil implies hard work that is often tedious and exhausting. Grinding usually refers to a prolonged and challenging effort. Pushing suggests that one is putting pressure on themselves to attain a goal. Choosing the right synonym can add more depth and precision to your writing.