cairn terrier vs terrier

cairn terrier and terrier both are nouns.

Word	Noun	Adjective	Verb	Adverb
cairn terrier	Yes	No	No	No
terrier	Yes	No	No	No

As nouns, terrier is a hypernym of cairn terrier; that is, terrier is a word with a broader meaning than cairn terrier:

cairn terrier: small rough-haired breed of terrier from Scotland
terrier: any of several usually small short-bodied breeds originally trained to hunt animals living underground

cairn terrier (noun)	terrier (noun)
small rough-haired breed of terrier from Scotland	any of several usually small short-bodied breeds originally trained to hunt animals living underground