A noun is a word that names a person, a place or a thing. Here I discuss Abstract Noun, Concrete Noun,Common Noun.Concrete Noun,Proper Noun,Countable Noun,Uncountable Noun,Pronoun,Personal Pronoun,Demonstrative Pronoun,Interrogative Pronoun,Possessive Pronoun,Relative Pronoun,Reflexive Pronoun,Intensive Pronoun,and Reciprocal Pronoun