When it comes to synonyms for "brush away," there are a few options to consider. For instance, you could use the phrase "sweep aside" to convey a similar meaning. Similarly, "push aside" might work as well. "Disregard" and "ignore" might also fit, especially if you're trying to convey a sense of dismissing something altogether. If you're looking for a more action-oriented verb, "wipe away" might serve as a good synonym. Ultimately, the best synonym for "brush away" will depend on the context in which you're using it, as well as your specific intentions as a writer or speaker.