rectifier vs worker

rectifier and worker both are nouns.

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

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

Other hypernyms of rectifier include actor, doer.

rectifier (noun)	worker (noun)
electrical device that transforms alternating into direct current	sterile member of a colony of social insects that forages for food and cares for the larvae
a person who corrects or sets right	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