The Atlantic Coast is the coastline that runs along the eastern seaboard of the United States. However, there are many synonyms for this term which can be used to add more variety to your writing. Some of the synonyms for Atlantic Coast include the Eastern Seaboard, the Seaboard, the Atlantic Seaboard, the East Coast, and the Eastern Coastline. These synonyms can be used interchangeably and can add more color and depth to your writing. Whether you're writing about the breathtaking views of the Seaboard or the Atlantic Seaboard culture, using synonyms can make your writing more interesting and engaging for your readers.