dog (Noun) — A member of the genus Canis (probably descended from the common wolf) that has been domesticated by man since prehistoric times; occurs in many breeds. ex. "the dog barked all night" ex. "the domestic dog barked all night"
dog (Noun) — A dull unattractive unpleasant girl or woman. ex. "she's a real dog"
dog (Noun) — Informal term for a man. ex. "you lucky dog"
dog (Noun) — Someone who is morally reprehensible. ex. "you dirty dog"
dog (Noun) — A smooth-textured sausage of minced beef or pork usually smoked; often served on a bread roll.
dog (Noun) — A hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward.
dog (Noun) — A metal support for logs in a fireplace. ex. "the dogs were too hot to touch"
dog (Noun) — A mechanical device for holding, gripping, or fastening something.
dog (Verb) — Go after with the intent to catch. ex. "The policeman dogged the mugger down the alley"
dog (Verb) — Persistently cause trouble for. ex. "dogged by reports of shareholder revolt"
dog (Verb) — Follow closely.