Here's a breakdown:
* Noun: A word that names a person, place, thing, or idea (e.g., dog, park, book, freedom).
* Pronoun: A word that replaces a noun (e.g., he, she, it, they).
* Adjective: A word that describes or modifies a noun or pronoun (e.g., big, red, happy, beautiful).
Examples:
* The big, red dog: "Big" and "red" are adjectives modifying the noun "dog".
* She is happy: "Happy" is an adjective modifying the pronoun "she".
Remember, adjectives provide more information about the noun or pronoun they modify, making the sentence more descriptive and informative.