Kitty Litter vs clay

Kitty Litter and clay both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kitty Litter	Yes	No	No	No
clay	Yes	No	No	No

As nouns, clay is a hypernym of Kitty Litter; that is, clay is a word with a broader meaning than Kitty Litter:

Kitty Litter: granulated clay; placed in a container where it absorbs the waste products of a cat or dog
clay: a very fine-grained soil that is plastic when moist but hard when fired

Kitty Litter (noun)	clay (noun)
granulated clay; placed in a container where it absorbs the waste products of a cat or dog	the dead body of a human being
	a very fine-grained soil that is plastic when moist but hard when fired
	water soaked soil; soft wet earth