Common Nouns, Proper Nouns, Collective Nouns, Concrete Nouns, Abstract Nouns
- C.N. names any one of group of persons, places, things, or ideas
- P.N. particular person, place, thing, or idea
- C.N. names of a group of people/things (not plurals)
- C.N. always physical things which can be touched and measured
- A.N. refer to ideas, processes, occasions, times which refer to what cannot be touched or seen