If you're tired of using the same old phrase "rain cats and dogs" to describe heavy rain, there are plenty of great synonyms that you can try out instead. Some popular options include "pouring buckets," "coming down in sheets," "a deluge," and "a monsoon." You could also use "torrential rain," "a downpour," "a thunderstorm," or "a tempest." If you're feeling creative, you might even come up with some fun and silly options of your own, like "frog-strangling rain," "a waterfall from the sky," or "an aquatic apocalypse." No matter which synonym you choose, there's no denying that heavy rain can be a powerful and awe-inspiring force of nature.