Sea

n. expanse of salt water that covers most of the earth’s surface. 2 any part of this. 3 named tract of this partly or wholly enclosed by land (North Sea). 4 large inland lake (Sea of Galilee). 5 waves of the sea; their motion or state (choppy sea). 6 (foll. by oJ) vast quantity or expanse. 7 (attrib.) living or used in. on. or near the sea (often prefixed to the name of a marine animal, plant, etc., having a superficial resemblance to what it is named after) (sea lettuce). oat sea 1 in a ship on the sea. 2 perplexed, confused. by sea in a ship or ships. go to sea become a sailor. on the sea 1 = at sea 1. 2 on the coast. [Old English]