plasterer vs trained worker

plasterer and trained worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
plasterer	Yes	No	No	No
trained worker	Yes	No	No	No

As nouns, trained worker is a hypernym of plasterer; that is, trained worker is a word with a broader meaning than plasterer:

Other hypernyms of plasterer include skilled worker, skilled workman.

plasterer (noun)	trained worker (noun)
a worker skilled in applying plaster	a worker who has acquired special skills