mound, knoll, hillock, butte, mesa, bluff, promontory, precipice, cliff, range, rising ground, headland, monadnock, upland, hummock, mount, downgrade, inclination, descent, slope, ascent, slant, grade, incline, eminence, height, dune, highland, rise, helicline, kopje (South African), tope (Hindu), foothill, chine, spine, barrow, steep, down, fell, tumulus, climb, elevation, protuberance, ridge, heap, acclivity, hillside, talus, upgrade, hilltop, tor, vantage point, pitch, swell, declivity, knap, gradient, Acropolis, hold, summit, esker, kop; see also mountain 1.