Proper nouns name specific people and places, while common nouns refer to general people and things. Collective nouns refer to groups of people or things, and nouns can be either concrete, referring to physical objects, or abstract, referring to ideas and qualities.

2. Nouns
Proper
Nouns
Common
Nouns
Collective
nouns
Concrete
Nouns
Abstract
Nouns

3. Proper nouns are names of persons and places.
Example: John, Alice, Tom, Paris, England