What does the word dog mean?

Usage examples for dog

  1. And then you come, and I saw your dirty face, and it made me think of a bad nightmare I'd had when you and your brother and your dad treated me worse'n a dog. – Bull Hunter by Max Brand
  2. Winterfield took his dog with him. – The Black Robe by Wilkie Collins
  3. It was Mr. Meldon told me to mention the name of the dog to you. – The Simpkins Plot by George A. Birmingham