carpet slipper vs footwear

carpet slipper and footwear both are nouns.

Word	Noun	Adjective	Verb	Adverb
carpet slipper	Yes	No	No	No
footwear	Yes	No	No	No

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

carpet slipper: low footwear that can be slipped on and off easily; usually worn indoors
footwear: covering for a person's feet

Other hypernyms of carpet slipper include footgear.

carpet slipper (noun)	footwear (noun)
low footwear that can be slipped on and off easily; usually worn indoors	covering for a person's feet
	clothing worn on a person's feet