THE NOUN - PERSON

Definition :

A person or thing that is addressed is said to be the Vocative Case or Nominative of Address.

Function of a Noun

A noun can have one of the following five uses or functions

• The subject of a verb:
  e.g. David sings well
• The object of a transitive verb:
  e.g. He bought a pen
• The complement of an incomplete verb:
  e.g. My brother is a doctor
• The object of a preposition.
  e.g. He went by this door
• In opposition to the noun that goes before it.
  e.g. David, my cousin, is a great scholar