| Main Entry: | |
| Part of Speech: | noun |
| Definition: | uprising of earth's surface; pile |
| Synonyms: | acclivity, ascent, bluff, butte, cliff, climb, down, drift, dune, elevation, eminence, esker, fell, gradient, headland, heap, height, highland, hillock, hillside, hilltop, hummock, inclination, incline, knoll, mesa, mound, mount, precipice, prominence, promontory, protuberance, range, ridge, rise, rising ground, shock, slope, stack, summit, talus, tor, upland |
| Antonyms: | canyon, ditch, gulley |
| Main Entry: | knoll |
| Part of Speech: | noun |
| Definition: | small hill |
| Synonyms: | acclivity, ascent, bluff, butte, cliff, drift, dune, elevation, esker, headland, heap, highland, hillock, hilltop, hummock, inclination, incline, knoll, mesa, mound, mount, precipice, prominence, promontory, ridge, rise, slope, summit |
| Main Entry: | outdoor |
| Part of Speech: | adjective, adverb |
| Definition: | in the open air |
| Synonyms: | alfresco, casual, free, garden, healthful, hilltop, in the open, informal, invigorating, mountain, natural, nature-loving, out of the house, out-of-doors, outside, patio, picnic, rustic, unrestricted, woods, yard |
| Antonyms: | indoor |