engraver vs skilled worker

engraver and skilled worker both are nouns.

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

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

engraver: a skilled worker who can inscribe designs or writing onto a surface by carving or etching
skilled worker: a worker who has acquired special skills

Other hypernyms of engraver include skilled workman, trained worker.

engraver (noun)	skilled worker (noun)
a printmaker who prints from an engraved printing plate	a worker who has acquired special skills
a skilled worker who can inscribe designs or writing onto a surface by carving or etching