laboratory vs workplace

laboratory and workplace both are nouns.

Word	Noun	Adjective	Verb	Adverb
laboratory	Yes	No	No	No
workplace	Yes	No	No	No

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

Other hypernyms of laboratory include work.

laboratory (noun)	workplace (noun)
a workplace for the conduct of scientific research	a place where work is done
a region resembling a laboratory inasmuch as it offers opportunities for observation and practice and experimentation