This document provides definitions and examples of different parts of speech including nouns. It defines proper noun, common noun, collective noun, abstract noun, and material noun. Proper nouns are names of specific people, places or things. Common nouns are general names that can apply to multiple people or things of the same type. Collective nouns refer to groups considered as a single unit. Abstract nouns name intangible concepts like qualities or actions. Material nouns are names of materials things are made of.