1) Hound 2) Hound dog 3) Large dog bred for hunting 4) Scottish deerhound 5) Scottish hunting dog 
• (n.) One of a large and fleet breed of hounds used in hunting deer; a staghound.
Deer'hound` noun (Zoology) One of a large and fleet breed of hounds used in hunting deer; a staghound. 
The Deerhound or Scottish Deerhound is a Scottish breed of large dog standing about 76 cm tall. It originated in the 14th century and was bred for stag hunting. A good natured breed, Deerhounds need plenty of exercise.
Breed of large, rough-coated dog, formerly used in Scotland for hunting and killing deer. Slim and long-legged, it grows to 75 cm/30 in or more, usually with a bluish-grey coat