A word that is used as the name of a person, place or thing is known as a Noun.
Mahatma Gandhi was a great leader.
Chandigarh is in the foothills of Shivalik.
The sun rises in the East.
His courage won him accolades.
Words in bolds are all Nouns.
Imp:-The word person in the definition represents all the living beings. The word things include (i) all objects that can be seen, hear, taste, touch or smell; and (ii) something that we can think of, but cannot perceive by the sense.
Classification of Noun
Nouns can be further classified in various categories in following ways.