Search Result for "hummock": 
Wordnet 3.0

NOUN (1)

1. a small natural hill;
[syn: knoll, mound, hillock, hummock, hammock]

The Collaborative International Dictionary of English v.0.48:

Hummock \Hum"mock\, n. [Prob. a dim. of hump. See Hump.] 1. A rounded knoll or hillock; a rise of ground of no great extent, above a level surface. [1913 Webster] 2. A ridge or pile of ice on an ice field. [1913 Webster] 3. Timbered land. See Hammock. [Southern U.S.] [1913 Webster]
WordNet (r) 3.0 (2006):

hummock n 1: a small natural hill [syn: knoll, mound, hillock, hummock, hammock]
Moby Thesaurus II by Grady Ward, 1.0:

20 Moby Thesaurus words for "hummock": anthill, barrow, brae, butte, down, drumlin, dune, fell, foothills, hill, hillock, knob, knoll, molehill, monticle, monticule, moor, mound, sand dune, swell