chihuahua

As proper nouns the difference between yorkie and chihuahua

is that yorkie is (informal) the yorkshire terrier, a small breed of dog weighing between 3-7 pounds as adults while chihuahua is a desert state in northwestern mexico.

As a noun chihuahua is

the smallest breed of dog, originating in mexico and having large erect ears.

As nouns the difference between chihuahua and hound

is that chihuahua is the smallest breed of dog, originating in mexico and having large erect ears while hound is a dog, particularly a breed with a good sense of smell developed for hunting other animals (hunt hound, hunting hound, hunting dog, hunter).

As a proper noun chihuahua

is a desert state in northwestern mexico.

As a verb hound is

to persistently harass.

As nouns the difference between abbreviation and chihuahua

is that abbreviation is the result of shortening or reducing; abridgment while chihuahua is the smallest breed of dog, originating in mexico and having large erect ears.

As a proper noun chihuahua is

a desert state in northwestern mexico.