Flat-nosed dogs, also known as brachycephalic dogs, are a type of dog breed characterized by their short snouts and wide heads. Two popular examples of flat-nosed dogs are Pugs (4 letters) and Pekes (5 letters). Pugs are small, stocky dogs with wrinkled faces and curled tails, while Pekes are toy dogs with long, silky coats and large eyes. Both breeds are known for their friendly personalities and loyalty to their owners.