cocker spaniel vs English cocker spaniel

cocker spaniel and English cocker spaniel both are nouns.

Word	Noun	Adjective	Verb	Adverb
cocker spaniel	Yes	No	No	No
English cocker spaniel	Yes	No	No	No

As nouns, cocker spaniel and English cocker spaniel are synonyms defined as:

cocker spaniel and English cocker spaniel: a small breed with wavy silky hair; originally developed in England

Other synonyms of cocker spaniel include cocker.

cocker spaniel (noun)	English cocker spaniel (noun)
a small breed with wavy silky hair; originally developed in England	a small breed with wavy silky hair; originally developed in England