The phrase "international set" refers to a group of people who come from different countries and are united by a common interest or purpose. Some synonyms for this phrase include "global clique," "worldly circle," "cosmopolitan squad," and "multinational crew." Other similar phrases that can be used include "cross-cultural community," "diverse network," and "transnational group." These terms all convey the idea of people from various backgrounds and nations coming together to share ideas, experiences, and perspectives. The use of these synonyms can add depth and nuance to conversations and written materials that involve global issues or international relations.