camping site vs camping ground

camping site and camping ground both are nouns.

Word	Noun	Adjective	Verb	Adverb
camping site	Yes	No	No	No
camping ground	Yes	No	No	No

As nouns, camping site and camping ground are synonyms defined as:

camping site and camping ground: a site where people on holiday can pitch a tent

Other synonyms of camping site include bivouac, campground, camping area, campsite, encampment.

camping site (noun)	camping ground (noun)
a site where people on holiday can pitch a tent	a site where people on holiday can pitch a tent