Sound vs. Bay
A. Sounds and bays have some things in common. Both contain fresh water (from rivers) and salt water (from oceans or seas) and are large bodies of water. The difference between the two is a bay has an opening and closing, whereas a sound is a series of inlets. A bay is defined as being "a broad inlet of the sea where the land curves inward." The technical definition of a sound is "in geography, a sound is a large sea or ocean inlet larger than a bay; or a narrow sea or ocean channel between two bodies of land." Think Chesapeake Bay vs. Pamlico Sound.