A noun refers to a person, place, thing, or idea. If you can perceive something through one of your five senses — sight, sound, smell, taste, or touch — it is probably a noun. Examples include:
But some nouns describe abstract concepts and ideas, which cannot be perceived through the five senses. For example:
Keep in mind two special types of nouns. The first is the collective noun, which describes a plural concept but is singular in form. Examples include:
Another special noun type is the proper noun, which refers to a specific person, place, thing, or idea. Joan, New York City, and the American Bar Association are all examples of proper nouns.