encamp vs encampment

encamp is not a noun while encampment is a noun.

Word	Noun	Adjective	Verb	Adverb
encamp	No	No	Yes	No
encampment	Yes	No	No	No

encamp (noun)	encampment (noun)
	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

encamp (verb)	encampment (verb)
live in or as if in a tent