roundhouse vs workplace

roundhouse and workplace both are nouns.

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

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

roundhouse: workplace consisting of a circular building for repairing locomotives
workplace: a place where work is done

Other hypernyms of roundhouse include work.

roundhouse (noun)	workplace (noun)
a hook delivered with an exaggerated swing	a place where work is done
workplace consisting of a circular building for repairing locomotives