There are several synonyms that can be used for the term "coast guard academy". One option includes "coastal defense school", which highlights the institution's focus on protecting coastlines and maritime borders. Another synonym could be "naval training center", which emphasizes the rigorous military training that cadets undergo at the academy. Additionally, "maritime academy" could be a suitable alternative, as it describes the academy's location near bodies of water and its emphasis on maritime education and training. All of these synonyms help to encapsulate the unique mission and purpose of the coast guard academy, and showcase the important role it plays in protecting our nation's shores.