plasterer vs skilled worker

plasterer and skilled worker both are nouns.

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

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

Other hypernyms of plasterer include skilled workman, trained worker.

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