burying ground vs burial ground

burying ground and burial ground both are nouns.

Word	Noun	Adjective	Verb	Adverb
burying ground	Yes	No	No	No
burial ground	Yes	No	No	No

As nouns, burying ground and burial ground are synonyms defined as:

Other synonyms of burying ground include burial site, cemetery, graveyard, memorial park, necropolis.

burying ground (noun)	burial ground (noun)
a tract of land used for burials	a tract of land used for burials