lens maker vs skilled worker

lens maker and skilled worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
lens maker	Yes	No	No	No
skilled worker	Yes	No	No	No

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

Other hypernyms of lens maker include skilled workman, trained worker.

lens maker (noun)	skilled worker (noun)
a worker who makes glasses for remedying defects of vision	a worker who has acquired special skills