The term "Atlantic Rim" refers to the area surrounding the Atlantic Ocean, including the countries and regions that border it. Some possible synonyms for Atlantic Rim could be Atlantic Basin, Atlantic Coastline, Atlantic Seaboard, or Atlantic Borderlands. These terms all convey the idea of a geographical region that encompasses the diverse cultures, economies, and environments of the coastal nations that surround the Atlantic. Other related terms might include North Atlantic, South Atlantic, or Mid-Atlantic, which help to define specific subregions within the broader context of the Atlantic Rim. Overall, the term Atlantic Rim captures the unique character and history of a complex and diverse part of the world.