# Noun A noun is a category of words. A noun can be a person, place, thing, or idea. It can be the name of someone or something. . ## More Information about this topic *What information is included in the form of a noun?* * **Case**- Case is the form of a word that helps someone to know the function of the word in a sentence. Case helps the reader to know what the word is doing in a sentence. * **Person**- Person is a category used to indicate whether a word refers to a speaker, the person being addressed, or someone else. * **Gender**- Number is the form of a word that helps someone to know how many people or things.