Peke vs Pekinese

Peke and Pekinese both are nouns.

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

As nouns, Peke and Pekinese are synonyms defined as:

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

Other synonyms of Peke include Pekingese.

Peke (noun)	Pekinese (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