wiper vs worker

wiper and worker both are nouns.

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

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

wiper (noun)	worker (noun)
a mechanical device that cleans the windshield	sterile member of a colony of social insects that forages for food and cares for the larvae
contact consisting of a conducting arm that rotates over a series of fixed contacts and comes to rest on an outlet	a person who works at a specific occupation
a worker who wipes	a member of the working class (not necessarily employed)
	a person who acts and gets things done