A noun is a name of someone/something which denotes a particular person/thing. It always begins with a capital letter.
Noun can be a/an –
A proper noun is a name which refers only to a single person, place, or thing and there is no common name for it. In written English, a proper noun always begins with capital letters.
A common noun is a name for a type of thing, person, species, or etc. which denotes a general name for something.
Example of Common Noun:
A material noun is a name for something which is tangible.
Example of Material Noun:
An abstract noun is a name for something which is intangible.
Example of Abstract Noun:
A noun which can be counted in cardinal numbers (1, 2, 3 . . .) is called a countable noun.
Example of Countable Noun:
A noun that cannot be counted with the cardinal numbers is called an uncountable noun.
Example of Uncountable Noun: