Irish setter vs red setter

Irish setter and red setter both are nouns.

Word	Noun	Adjective	Verb	Adverb
Irish setter	Yes	No	No	No
red setter	Yes	No	No	No

As nouns, Irish setter and red setter are synonyms defined as:

Irish setter and red setter: an Irish breed with a chestnut-brown or mahogany-red coat

Irish setter (noun)	red setter (noun)
an Irish breed with a chestnut-brown or mahogany-red coat	an Irish breed with a chestnut-brown or mahogany-red coat