any of several breeds of hunting dog that find game either by scenting and tracking, as the beagle, the bloodhound, and the foxhound, or by sighting followed by swift pursuit, as the borzoi, deerhound, and greyhound
any dog, especially a member of one of the hunting breeds, with drooping ears, a deep-throated bark, and a keen sense of smell
a contemptible person
☆ Slang a devotee or fan: autograph hound
transitive verb
to hunt or chase with or as with hounds; chase or follow continually; nag: to hound a debtor