Here's the breakdown:
* Appositive: A noun or noun phrase that renames or clarifies another noun or noun phrase. It's usually placed right next to the word it's explaining.
* Pronoun: A word that replaces a noun or noun phrase.
Example:
* The dog, a golden retriever, barked loudly.
* "Golden retriever" is the appositive because it renames "dog."
* The pronoun here could be "it" (referring to "dog").
Key Difference:
* Appositives provide additional information about a noun.
* Pronouns act as stand-ins for a noun.
Let me know if you have any other questions!