SIPA is an acronym for "School of International and Public Affairs," a prestigious educational institution in New York City. Some synonyms for SIPA might include "public policy school," "international studies program," or "graduate school of public affairs." Other related terms could include "political science department," "global affairs program," or "diplomacy school." Depending on the context in which the term SIPA is being used, other options might include "government school," "public administration program," or "international relations institute." Overall, there are many different ways to describe the concept of SIPA, depending on the specific aspects of its mission, values, and educational philosophy that are being emphasized.