A noun is a word that names a person, place, thing, or idea. For example, in the sentence "The dog barked," the word "dog" is a noun because it identifies an animal. Nouns can be specific, like Sarah or Paris, or general, like teacher or city. They help us communicate clearly by allowing us to refer to different elements in our world. Nouns can also be categorized into different types. Common nouns refer to general items, such as apple or car, while proper nouns name specific entities, like Eiffel Tower or J.K. Rowling. Additionally, nouns can be singular, like cat, or plural, like cats, depending on whether