What is Language? Define its types ?

What is language ? Explain with its types? 

Language : 

Is a  Source of Communication. 'OR' Language is  a system of words  Or sign that people  use to to express thoughts and feeling to each other.

  Types of Language:

 1: National Language:

A language spoken and understood by majority of the people in the country  is called National language. 

Example: Urdu 

2:  International Language:

A language spoken and understood by the majority of the people in The world is called International language. 

eg ; English 

3: Local Language:

A language belong to Particular a city, village ,area is called local  language. 

eg;  Urdu, Pashto etc.

 4: Native Language:

A language learn since from. childhood called native language

e.g; Urdu , pashto, English etc  (mother tongue).