cairn vs terrier

cairn and terrier both are nouns.

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

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

cairn: 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 (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
a mound of stones piled up as a memorial or to mark a boundary or path