The answer is shoreline
1. [Petroleum Industry] The boundry between earth and water in a body of water. 2. [Fishing Industry] The boundry between muddy and clear water when silt is stirred up. 3. [Fishing Industry] Water absorbent rope attached to the bottom of a seine to hold it close to the sea floor.
median line
"shore"
if you're talking about a stream like body its called a fjord.
A sound.
meditaranian
That body of water is called Long Island Sound.
The strait between Cape Horn and Antarctica is called the Drake Passage.
The body of water located in the Sinai Peninsula and the rest of of Egypt is called the Gulf of Suez.
This would be called a fjord.
The body of water between Tasmania and the Australian mainland is called Bass Strait.
The body of water between the UK and the US is called the North Atlantic Ocean.