Here's a breakdown:
Specific Noun:
* Refers to a particular entity.
* Often capitalized.
* Examples:
* John (specific person)
* Paris (specific place)
* The Mona Lisa (specific thing)
* Buddhism (specific idea)
Common Noun:
* Refers to a general category.
* Not capitalized (unless it's at the beginning of a sentence).
* Examples:
* man (general category of people)
* city (general category of places)
* painting (general category of things)
* religion (general category of ideas)
In essence, a specific noun is a unique, identifiable individual or entity, while a common noun is a general label for a group of things.