Noun is a name of a person, place, thing, or idea. An example of noun are Robert, apartment, California, wife, and cats. Pronouns take a noun's place. An example of pronoun is he. Adjectives describe a noun or pronoun. An example of adjectives is black and expensive. Robert lives in a small apartment in California with his wife and two cats. He teaches college courses. His black cat only eats expensive food.
