voicer vs trained worker

voicer and trained worker both are nouns.

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

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

Other hypernyms of voicer include skilled worker, skilled workman.

voicer (noun)	trained worker (noun)
a speaker who voices an opinion	a worker who has acquired special skills
someone who regulates the tone of organ pipes