These word classes are called Part of Speech.
They are explained below:
A noun is “naming word”. It names somebody or something.
Rahul took the dog to park.
The car makes a lot of noise.
Look at the example above. A noun is the name of a person (Rahul), animal (dog), place (park),
thing (car) or idea (noise).
Kinds of Nouns
Nouns may be divided into (a) common nouns and (b) proper nouns.
are the names given in common to all persons, places or things of the same class.
For example, bank, shop, market, etc.
: Common nouns include another class known as collective nouns. A collective
noun names agroup of people, animals or things regarded as a whole., e.g., batch, company,
university, crowd, flock, etc.