camping site vs encampment

camping site and encampment both are nouns.

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

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

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

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

camping site (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