pie-dog vs pye-dog

pie-dog and pye-dog both are nouns.

Word	Noun	Adjective	Verb	Adverb
pie-dog	Yes	No	No	No
pye-dog	Yes	No	No	No

As nouns, pie-dog and pye-dog are synonyms defined as:

pie-dog and pye-dog: ownerless half-wild mongrel dog common around Asian villages especially India

Other synonyms of pie-dog include pariah dog.

pie-dog (noun)	pye-dog (noun)
ownerless half-wild mongrel dog common around Asian villages especially India	ownerless half-wild mongrel dog common around Asian villages especially India