Word Study
groundhog
CIDE DICTIONARY
groundhog, n.
A reddish brown North American burrowing marmot (Marmota monax ), also called the woodchuck . It hibernates in the winter. [WordNet 1.5]
THESAURUS
groundhog
Cape polecat, ape, bar, bear, cavy, chimp, chimpanzee, coon, digger, dredge, dredger, driller, excavator, ferret, foumart, glutton, guinea pig, hedgehog, miner, monk, monkey, mousehound, navvy, opossum, polecat, porcupine, possum, prairie dog, quill pig, raccoon, sandhog, sapper, skunk, steam shovel, tunneler, weasel, whistle-pig, wolverine, woodchuck, zorilFor further exploring for "groundhog" in Webster Dictionary Online