When we talk about something increasing in size, we often use the phrase "become larger." However, there are many other synonyms for this phrase that you can use to add variety to your writing. For example, you could use "expand" or "enlarge" to describe something getting bigger. Alternatively, you could say that something is "growing" or "swelling" in size. If you want to emphasize how quickly something is getting larger, you could use words like "skyrocket" or "explode." There are many other options to choose from as well, so experiment with different synonyms to keep your writing fresh and interesting.