a. Of or pertaining to the main or great sea; as, the ocean waves; an ocean stream. Milton. [ 1913 Webster ]

n. [ F. océan, L. oceanus, Gr. 'wkeano`s ocean, in Homer, the great river supposed to encompass the earth. ] 1. The whole body of salt water which covers more than three fifths of the surface of the globe; -- called also the sea, or great sea. [ 1913 Webster ]

Like the odor of brine from the ocean
Comes the thought of other years. Longfellow. [ 1913 Webster ]

2. One of the large bodies of water into which the great ocean is regarded as divided, as the Atlantic, Pacific, Indian, Arctic and Antarctic oceans. [ 1913 Webster ]

3. An immense expanse; any vast space or quantity without apparent limits; as, the boundless ocean of eternity; an ocean of affairs. Locke. [ 1913 Webster ]

You're gonna need an ocean
Of calamine lotion. Lieber & Stoller (Poison Ivy: song lyrics, 1994) [ PJC ]

n. Land bordering an ocean. [ WordNet 1.5 ]

a. Bordering an ocean; as, oceanfront property. [ WordNet 1.5 ]

adj. capable of crossing an ocean; used on the high seas; -- used mostly of ships; as, oceangoing vessels.
Syn. -- seafaring, seagoing. [ WordNet 1.5 ]

prop. n. A large group of islands in the south Pacific sometimes including Australasia and the Malay Archipelago.
Syn. -- Oceanica. [ WordNet 1.5 ]

a. [ Cf. F. océanique. See Ocean. ] 1. Of or pertaining to the ocean; found or formed in or about, or produced by, the ocean; frequenting the ocean, especially mid-ocean. [ 1913 Webster ]

Petrels are the most aerial and oceanic of birds. Darwin. [ 1913 Webster ]

2. Of or pertaining to Oceania or its inhabitants. [ 1913 Webster ]

prop. n. Same as Oceania. [ WordNet 1.5 ]

prop. n. (Greek mythology) A daughter of the Titans Oceanus and Tethys.
Syn. -- sea nymph. [ WordNet 1.5 ]

n. A scientist who studies physical and biological aspects of the seas. [ WordNet 1.5 ]