Definition of: sea

(sē) noun
1. The great body of salt water covering the larger portion of the earth's surface; the ocean.
2. A large or considerable body of oceanic water partly or almost entirely enclosed by land: the Adriatic Sea.
3. A large inland body of water, salt or fresh: the Dead Sea or the Sea of Galilee.
4. The swell of the ocean; the course, flow, or set of the waves.
5. Anything that resembles or suggests the sea, as something vast, boundless, or wide-spread.
—at sea
1. On the ocean.
2. At a loss what to do or think; bewildered.
—to follow the sea To follow the occupation of a sailor.
—the high seas The unenclosed expanse of the ocean; also, that part of the ocean beyond a country's territorial waters.
—the seven seas All the oceans of the world: the North and the South Atlantic, the North and the South Pacific, the Indian, the Arctic, and the Antarctic oceans. ♦ Homophone: see. [OE sæ]