A dog trained to assist the deaf, alerting the deaf person to doorbells, smoke alarms etc.

To take a dog for a walk, so as to give it exercise. / (idiomatic, yo-yo) To perform a trick where the yo-yo rolls on the ground, attached to the string.

A dog trained to hunt wolves. / A hybrid between a wolf and a dog.

(vulgar) Fecal matter produced by a dog. / (vulgar) Rubbish. / (vulgar) Nothing, or very little. / (vulgar, slang, Australia, New Zealand) Rigged (sometimes shortened to dog).

(vulgar) Bad.

Food eaten by or appropriate for dogs in general, whether wild or domesticated. / Food for domesticated dogs. / (computing) Beta software that is tested on the developer’s own computer.

A swimming stroke in the style of a dog swimming.

To swim in dog paddle style.

(idiomatic) An alcoholic drink, particularly when taken the morning after to cure a hangover.

A cart drawn by a dog. / A two-wheeled horse-drawn carriage with two transverse seats back to back. The rear seat originally closed up to form a box for carrying dogs.