coach dog vs dalmatian

coach dog and dalmatian both are nouns.

Word	Noun	Adjective	Verb	Adverb
coach dog	Yes	No	No	No
dalmatian	Yes	No	No	No

As nouns, coach dog and dalmatian are synonyms defined as:

coach dog and dalmatian: a large breed having a smooth white coat with black or brown spots; originated in Dalmatia

Other synonyms of coach dog include carriage dog.

coach dog (noun)	dalmatian (noun)
a large breed having a smooth white coat with black or brown spots; originated in Dalmatia	a large breed having a smooth white coat with black or brown spots; originated in Dalmatia