waterworks vs workplace

waterworks and workplace both are nouns.

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

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

waterworks: workplace where water is stored and purified and distributed for a community
workplace: a place where work is done

Other hypernyms of waterworks include work.

waterworks (noun)	workplace (noun)
workplace where water is stored and purified and distributed for a community	a place where work is done
a public utility that provides water