slipper vs worker

slipper and worker both are nouns.

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

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

Other hypernyms of slipper include actor, doer.

slipper (noun)	worker (noun)
low footwear that can be slipped on and off easily; usually worn indoors	sterile member of a colony of social insects that forages for food and cares for the larvae
a person who slips or slides because of loss of traction	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