The term LEVEL AREA can be broken down into three words: FLOOR (5 letters), SEA (3 letters), and PLATEAU (7 letters). A FLOOR is a flat surface, usually horizontal, that forms the base of a room or building. The SEA is a large body of salt water, covering most of the Earth's surface. A PLATEAU is an area of relatively level high ground, usually bordered by steep slopes. Together, these three words describe an area that is relatively flat and level, either on land or in the ocean.