Hound group

A hound is a type of dog used by hunters to track or chase prey.

Hounds can be contrasted with gundogs, which assist hunters by identifying the location of prey and/or recovering shot quarry. The hound breeds were the first hunting dogs. They have either a powerful sense of smell or great speed.

There are three types of hound, with several breeds within each type:

This may not include all hound-type dogs. The international kennel club association, the Fédération Cynologique Internationale, does not have a Hound Group and includes most hound-type dogs in Group 6, Scenthounds and related Breeds, and Group 10, Sighthounds.

...
Wikipedia