sea wiki:
ay stand for:Southeast AsiaThe IATA airport code for Seattle-Tacoma International AirportTwo different aircraft manufacturers named Société d'Etudes Aéronautiques, one French, one BelgianSingle European ActSoluble Egg Antigen (Schistosomiasis)Strategic Environmental AssessmentSouthern Economic Association
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underwater wiki:
>For other uses of the word underwater, see Underwater (disambiguation) Underwater, sometimes shortened as U/W, is a term describing the realm below the surface of water where the water exists in a natural feature (called a body of water) such as an ocean, sea, lake, pond, or river. Three quarters of the planet earth is covered by water. A majority of the planet's solid surface is abyssal plain, at depths between 4000 and 5500 m (13,000 to 18,000 ft) below the surface of the oceans. The solid surface location on the planet closest to the center of the orb is the Challenger Deep, located in the Mariana Trench at a depth of 10,924 m (35,838 ft) under the sea.
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