The word "it" is a not a noun, it is a pronoun, a word that takes the place of a noun.
The pronoun it is a personal pronoun that takes the place of a neuter noun for a specific thing. The pronoun it can be used as the subjective or objective case in a sentence. Example:
I can't find my notebook. It has silver star stickers on it. Have you seen it?
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.
The noun "sugar" is a common noun.
The noun "street" is a common noun.
It isn’t a noun at all. Replaces a noun.
A common noun
A common noun.
Proper noun
It is a common noun.