a division of an ocean or a large body of salt water partially enclosed by land
source: WordNet 3.0
anything apparently limitless in quantity or volume
source: WordNet 3.0
turbulent water with swells of considerable size
Heavy seas.
source: WordNet 3.0
One of the larger bodies of salt water, less than an ocean, found on the earth's surface; a body of salt water of second rank, generally forming part of, or connecting with, an ocean or a larger sea; as, the Mediterranean Sea; the Sea of Marmora; the North Sea; the Carribean Sea.