There are several synonyms for the phrase "bunch together." Some of these include "cluster," "group," "gather," "huddle," "congregate," and "assemble." While all of these words convey a similar meaning, there may be slight differences in how they are used in context. For example, "cluster" may imply a tighter, more compact grouping compared to "group" which could refer to a larger, more spread out gathering. "Huddle" may suggest a closer proximity and more intimate gathering, while "congregate" and "assemble" may imply a more organized and structured grouping. It's important to consider the specific context when choosing the most appropriate synonym for "bunch together".