Nouns

A noun is a word that identifies-

                 A person (woman, boy, doctor, neighbor)

                A thing (dog, building, tree, country)

                An idea, quality, or state (truth, danger, birth, happiness).

         There are several different types of noun, as follows:

Common noun

                 A common noun is a noun that refers to people or things in general, e.g. boy, country, bridge, city, birth, day, happiness.

Proper noun 

               A proper noun is a name that identifies a particular person, place, or thing, e.g. Steven, Africa, Tower Bridge, London, and Monday. In written English, proper nouns begin with capital letters.

Concrete noun 

              A concrete noun is a noun which refers to people and to things that exist physically and can be seen, touched, smelled, heard, or tasted. Examples include dog, building, tree, rain, beach, tune, Tower Bridge. 

Abstract noun 

              An abstract noun is a noun which refers to ideas, qualities, and conditions - things that cannot be seen or touched and things which have no physical reality, e.g. truth, danger, happiness, time, friendship, humor.

Collective nouns

              Collective nouns refer to groups of people or things, e.g. audience, family, government, team, jury. Collective nouns can usually be treated as singular or plural, with either a singular or plural verb. Both the following sentences are grammatically correct: 

                   The whole family was at the table.

                  The whole family were at the table.

            A noun may belong to more than one category. For example, happiness is both a common noun and an abstract noun, while Tower Bridge is both a concrete noun and a proper noun.