mutt vs pariah dog

mutt and pariah dog both are nouns.

Word	Noun	Adjective	Verb	Adverb
mutt	Yes	No	No	No
pariah dog	Yes	No	No	No

As nouns, pariah dog is a hyponym of mutt; that is, pariah dog is a word with a more specific, narrower meaning than mutt:

mutt: an inferior dog or one of mixed breed
pariah dog: ownerless half-wild mongrel dog common around Asian villages especially India

Other hyponyms of mutt include feist, fice, pie-dog, pye-dog.

mutt (noun)	pariah dog (noun)
an inferior dog or one of mixed breed	ownerless half-wild mongrel dog common around Asian villages especially India