tuner vs skilled worker

tuner and skilled worker both are nouns.

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

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

Other hypernyms of tuner include skilled workman, trained worker.

tuner (noun)	skilled worker (noun)
an electronic receiver that detects and demodulates and amplifies transmitted signals	a worker who has acquired special skills
someone who tunes a musical instrument