The word "possy" refers to a group of people or friends who are usually seen hanging out together. However, there are several other synonyms that can be used instead of "possy" like "crew", "gang", "posse", "squad", "clique", and "entourage" among others. These words have a similar meaning to that of "possy" and can be used interchangeably in different contexts. Irrespective of the word one chooses to use, the meaning and intent behind it remain the same. The choice of word may depend on the region or culture, and one should be mindful of using the appropriate word in context.