projectionist vs trained worker

projectionist and trained worker both are nouns.

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

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

Other hypernyms of projectionist include skilled worker, skilled workman.

projectionist (noun)	trained worker (noun)
the person who operates the projector in a movie house	a worker who has acquired special skills