butcher vs trained worker

butcher and trained worker both are nouns.

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

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

Other hypernyms of butcher include skilled worker, skilled workman.

butcher (noun)	trained worker (noun)
a person who slaughters or dresses meat for market	a worker who has acquired special skills
a brutal indiscriminate murderer
a retailer of meat
someone who makes mistakes because of incompetence

butcher (verb)	trained worker (verb)
kill (animals) usually for food consumption