work camp vs prison camp

work camp and prison camp both are nouns.

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

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

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

Other synonyms of work camp include prison farm.

work camp (noun)	prison 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