The word its is not a noun. The word its (no apostrophe) is a pronoun, a possessive pronoun and a possessive adjective.
A possessive adjective is placed before a noun to show possession of the noun that follows.
example: The book was half price because its cover was torn.
A possessive pronoun takes the place of a noun that belongs to the antecedent.
example: Its was the only cover with damage.
The pronoun its is the possessive form of the personal pronoun it, a word that takes the place of a noun for a specific thing.
example: This is an interesting book. It is the same book even with a torn cover.
The form it's (with apostrophe) is a contraction, a shortened form for the pronoun it and the verb is. The contraction it'sfunctions as the subject and verb (or auxiliary verb) of a sentence or clause.
example: It's the same book even with a torn cover.
The noun 'kind' is an abstract noun. There is no form for kind that is a concrete noun.
The noun 'kind' is an abstact noun as a word for a type or class. The abstract noun form of the adjective "kind" is "kindness".
The word 'kind' is both an adjective and a noun. The noun kind, a singular, common, abstract noun is a word for a group of individuals or instances sharing common traits; a category.The noun forms for the adjective kind are kindness and kindliness.
It's no kind of noun it is an adjective. The noun is ravenousness.
The the noun 'kind' is an abstract noun as a word for type or class; having similar characteristics.The abstract noun for kind is kindness.
A common noun
The noun "street" is a common noun.
The noun "sugar" is a common noun.
It isn’t a noun at all. Replaces a noun.
A common noun.
It is an abstract noun.
Proper noun