potty seat vs potty

potty seat and potty both are nouns.

Word	Noun	Adjective	Verb	Adverb
potty seat	Yes	No	No	No
potty	Yes	Yes	No	No

As nouns, potty is a hypernym of potty seat; that is, potty is a word with a broader meaning than potty seat:

Other hypernyms of potty seat include can, commode, crapper, pot, stool, throne, toilet.

potty seat (noun)	potty (noun)
toilet consisting of a small seat used by young children	a receptacle for urination or defecation in the bedroom
	a plumbing fixture for defecation and urination

potty seat (adjective)	potty (adjective)
	slightly intoxicated
	marked by foolish or unreasoning fondness
	(British informal) trivial