adjective
Definition: Referring to a specific person, thing, or idea that is close in distance or time, or has just been mentioned.
Example: This book is my favorite.
adverb
Definition: To the degree or extent indicated by something that is close or present in the context.
Example: I have never stayed out this late before.
pronoun
Definition: A word used to point to a specific person, thing, or idea that is close in distance or time.
Example: This is my favorite book.