| hummock anthill barrow brae butte down drumlin dune fell foothills hill hillock knob knoll molehill monticle monticule moor mound sand dune swell |
| Hummock (n.) A rounded knoll or hillock |
| Hummock (n.) A ridge or pile of ice on an ice field. |
| Hummock (n.) Timbered land. See Hammock. |
| knoll mound hillock hummock hammock | a small natural hill |