prison camp vs work camp

prison camp and work camp both are nouns.

Word	Noun	Adjective	Verb	Adverb
prison camp	Yes	No	No	No
work camp	Yes	No	No	No

As nouns, prison camp and work camp are synonyms defined as:

prison camp and work camp: a camp for trustworthy prisoners employed in government projects

Other synonyms of prison camp include prison farm.

prison camp (noun)	work camp (noun)
a camp for trustworthy prisoners employed in government projects	a camp for trustworthy prisoners employed in government projects
a camp for prisoners of war