If you're tired of saying "roomies" over and over again, there are plenty of synonyms to choose from! For starters, you could use "roommates," which is a more traditional term that's been around for ages. "Housemates" is another option, which suggests that you share a whole house or apartment with your roommates. "Flatmates" is the British equivalent, so if you're feeling extra fancy, you could use that one. "Co-tenants" and "cohabitants" are more formal terms that might be appropriate in certain settings. And if you really want to mix it up, you could always refer to your roommates as your "living companions" or "dorm buddies".