This document defines and provides examples of different types of nouns, including proper nouns, common nouns, concrete nouns, abstract nouns, collective nouns, count nouns, and mass nouns. Proper nouns refer to specific people, places, things, or ideas while common nouns refer to generic categories. Concrete nouns can be perceived by the senses while abstract nouns cannot. Collective nouns refer to groups, count nouns can be counted, and mass nouns cannot be counted but can be measured. The document also discusses qualifiers which indicate amounts or qualities of nouns.