From WordNet (r) 3.0 (2006):
hound
n 1: any of several breeds of dog used for hunting typically
having large drooping ears [syn: hound, hound dog]
2: someone who is morally reprehensible; "you dirty dog" [syn:
cad, bounder, blackguard, dog, hound, heel]
v 1: pursue or chase relentlessly; "The hunters traced the deer
into the woods"; "the detectives hounded the suspect until
they found him" [syn: hound, hunt, trace]