count noun vs noun

count noun and noun both are nouns.

Word	Noun	Adjective	Verb	Adverb
count noun	Yes	No	No	No
noun	Yes	No	No	No

As nouns, noun is a hypernym of count noun; that is, noun is a word with a broader meaning than count noun:

count noun: a noun that forms plurals
noun: a content word that can be used to refer to a person, place, thing, quality, or action

count noun (noun)	noun (noun)
a noun that forms plurals	a content word that can be used to refer to a person, place, thing, quality, or action
	the word class that can serve as the subject or object of a verb, the object of a preposition, or in apposition