• Ocean – the four to seven largest named bodies of water in the World Ocean, all of which have "Ocean" in the name (see: Borders of the oceans for details).
• Sea has several definitions: … See more

The largest terrestrial seas, in decreasing order of area, are:
1. Philippine Sea – 5.695 million km (2.199 million sq mi)
2. Coral Sea – 4.791 million km (1.850 million sq mi)… See more

Seas may be considered marginal between ocean and land, or between oceans in which case they may be treated as marginal parts of either. There is no single ultimate authority on the matter.
(clockwise f… See more