miracle worker vs worker

miracle worker and worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
miracle worker	Yes	No	No	No
worker	Yes	No	No	No

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

Other hypernyms of miracle worker include actor, doer.

miracle worker (noun)	worker (noun)
a person who claims or is alleged to perform miracles	sterile member of a colony of social insects that forages for food and cares for the larvae
	a person who works at a specific occupation
	a member of the working class (not necessarily employed)
	a person who acts and gets things done