potty seat vs toilet

potty seat and toilet both are nouns.

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

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

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

potty seat (noun)	toilet (noun)
toilet consisting of a small seat used by young children	the act of dressing and preparing yourself
	a room or building equipped with one or more toilets
	a plumbing fixture for defecation and urination
	misfortune resulting in lost effort or money