camping ground vs encampment

camping ground and encampment both are nouns.

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

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

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

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

camping ground (noun)	encampment (noun)
a site where people on holiday can pitch a tent	the act of encamping and living in tents in a camp
	temporary living quarters specially built by the army for soldiers
	a site where people on holiday can pitch a tent