fish farm vs workplace

fish farm and workplace both are nouns.

Word	Noun	Adjective	Verb	Adverb
fish farm	Yes	No	No	No
workplace	Yes	No	No	No

As nouns, workplace is a hypernym of fish farm; that is, workplace is a word with a broader meaning than fish farm:

Other hypernyms of fish farm include work.

fish farm (noun)	workplace (noun)
a workplace (usually a pond) where fish are raised for food	a place where work is done