cemetery vs burying ground

cemetery and burying ground both are nouns.

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

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

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

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