As I was redoing my map, I saw that ALL of my bodies of water wer labled Sea this, Sea that. And now I am like, wait, aren't those supposed to be oceans? How do I know where an ocean is and were a sea is? I think I used to have some difference. For example, Draco's Cove let out to North Gui Sea, which laid between the contenent and an island, with a bigger body of water to the east.

Do I need oceans? Its an entire world, and fairly large. I've turned this more accurate as time has gone on and I'd like to get it right.

Can Seas be okay, or are oceans a must?