prison camp vs prison farm

prison camp and prison farm both are nouns.

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

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

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

Other synonyms of prison camp include work camp.

prison camp (noun)	prison farm (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