balloonist vs trained worker

balloonist and trained worker both are nouns.

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

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

Other hypernyms of balloonist include skilled worker, skilled workman.

balloonist (noun)	trained worker (noun)
someone who flies a balloon	a worker who has acquired special skills