. "An ocean (from Ancient Greek \u1F68\u03BA\u03B5\u03B1\u03BD\u03CC\u03C2, transc. Okean\u00F3s, the sea of classical antiquity) is a body of saline water that composes much of a planet's hydrosphere. On Earth, an ocean is one of the major conventional divisions of the World Ocean, which covers almost 71% of its surface. These are, in descending order by area, the Pacific, Atlantic, Indian, Southern, and Arctic Oceans."@en . .