Hound

1. A domestic dog of any of various breeds commonly used for hunting, characteristically having drooping ears, a short coat, and a deep, resonant voice. They use hound to corner the fox on their annual fox hunt.
2. A dog. There was a hound in the widow of the pet shop.
3. On who eagerly pursues something. He was known as a news hound, while she was a fanatic coffee hound.