Pekinese vs Peke

Pekinese and Peke both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pekinese	Yes	No	No	No
Peke	Yes	No	No	No

As nouns, Pekinese and Peke are synonyms defined as:

Pekinese and Peke: a Chinese breed of small short-legged dogs with a long silky coat and broad flat muzzle

Other synonyms of Pekinese include Pekingese.

Pekinese (noun)	Peke (noun)
a Chinese breed of small short-legged dogs with a long silky coat and broad flat muzzle	a Chinese breed of small short-legged dogs with a long silky coat and broad flat muzzle