If my feet are at the end of my legs, then the coast is at the end of the land. The ends of the earth is simply where the land stops: it ceases, fails, has and end. The beach.
Low-lying Continents with Some Epicontinental Flooding
"Low lying continents with some epicontinental flooding". That's how you describe a world-wide flood without saying the words "world-wide flood."
March 12th
If you want to believe that earth is flat no one's going to stop you. However nothing in the Bible, either in the meaning of words or in the context of passages, requires you to believe that earth is flat and has an edge.