A domesticated carnivorous mammal (Canis familiaris) that typically has a long snout, an acute sense of smell, non-retractable claws, and a barking, howling, or whining voice.
The dog barked loudly at the mailman.
A male animal of the family Canidae, especially of a fox or a domesticated breed.
The dog fox was seen prowling near the henhouse.
A despicable man or youth.
He was considered a dog for betraying his friends.
A mechanical device for gripping, holding, or fastening something.
The carpenter used a dog to hold the wood in place while he sawed it.
An informal term for a hot dog, a type of sausage served in a sliced bun.
I ordered a dog with mustard and onions at the baseball game.
Informal. Something that is of poor quality or a commercial failure.
The expensive marketing campaign could not save the product—it was a dog at the box office.
Informal (chiefly US, usually in the plural). A person's feet.