DOG

noun

1. A mammal, Canis familiaris or Canis lupus familiaris, that has been domesticated for thousands of years, of highly variable appearance due to human breeding.
2. Any member of the Family Canidae, including domestic dogs, wolves, coyotes, jackals, foxes, and their relatives (extant and extinct); canid.
3. A male dog, wolf or fox, as opposed to a bitch or vixen.

verb

1. To pursue with the intent to catch.
2. To follow in an annoying or harassing way.
3. To fasten a hatch securely.

noun

1. Meat from a dog eaten as food.
2. Meat prepared to be given to a dog as food.
3. An insult intended to assert hyperbolically that another person has value only as a corpse to be fed to a dog.