sand dune Definition

dune, sand, headland, escarpment, desert, hillside, marsh, beach, promontory, shoreline, sandbar, berm, marram, lagoon, hillock, vegetation, mangrove, intertidal, riverbank, cliffs, ridge, marram grass, sandy, rock outcrop, rockface, hogback, volcanic crater, crag, groyne, icefield, reef, hill, lochan, waterfall, boulders, mountain, lake, glacier, landform, koppie, treeline, slope, cypress tree, timberline, massifs, corrie, riverbed, seracs, ridgeline, petroglyph, mountainside, butte, ravine, namib desert, ocean, bulrushes, slickrock, creek bed, snowfield, meadow, knoll, mudflat, bluffs, hummocks, tableland, tussock grass, landforms, fringing reef, sastrugi, esker, lassen peak, palm tree, causeway, gun emplacement, coral reef, creek, coquina, clifftop, sidehill, landmasses, tussocks, serac, mud puddle, kloof, harney peak, ligurian sea, embankment, streambed, rocks, crater, outcropping, lava, canyon, hardpan, lighthouse, rimrock, ledge, huascaran, copse, lyme grass,