flyer vs trained worker

flyer and trained worker both are nouns.

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

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

Other hypernyms of flyer include skilled worker, skilled workman.

flyer (noun)	trained worker (noun)
an advertisement (usually printed on a page or in a leaflet) intended for wide distribution	a worker who has acquired special skills
someone who travels by air
someone who operates an aircraft