THESAURUS
alkali flat, alluvial plain, basin, billiard table, bottomland, bowling green, bushveld, campo, champaign, champaign country, coastal plain, dead flat, dead level, delta, desert, down, downs, earth, esplanade, fell, flat, flat country, flats, floor, grass veld, grassland, ground, heath, homaloid, horizontal, horizontal axis, horizontal fault, horizontal line, horizontal parallax, horizontal plane, horizontal projection, lande, ledge, level, level line, level plane, llano, lowland, lowlands, lunar mare, mare, mean sea level, mesa, mesilla, moor, moorland, open country, pampa, pampas, parterre, peneplain, plain, plains, plane, plateau, platform, playa, prairie, salt flat, salt marsh, salt pan, savanna, sea level, sea of grass, sebkha, steppe, table, tableland, terrace, tree veld, tundra, upland, vega, veld, water level, weald, wide-open spaces, wold
