middle of the roader vs worker

middle of the roader and worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
middle of the roader	Yes	No	No	No
worker	Yes	No	No	No

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

Other hypernyms of middle of the roader include actor, doer.

middle of the roader (noun)	worker (noun)
a person who takes a position in the political center	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