camp out vs tent

camp out is not a noun while tent is a noun.

Word	Noun	Adjective	Verb	Adverb
camp out	No	No	Yes	No
tent	Yes	No	Yes	No

As verbs, camp out and tent are synonyms defined as:

Other synonyms of camp out include bivouac, camp, encamp.

camp out (noun)	tent (noun)
	a portable shelter (usually of canvas stretched over supporting poles and fastened to the ground with ropes and pegs)
	a web that resembles a tent or carpet

camp out (verb)	tent (verb)
live in or as if in a tent	live in or as if in a tent