A proper noun is the name of a particular person or place. For example: Ramu is a wise fellow. Patna lacks basic civic amenities.
1. Common Noun
A common noun is a name given in common to every person or thing of the same class or kind. For example; I write with a pen. The student asked me a few questions.
Noun is a word used to name a person, place or thing. For example: Rama was an epic king.