adjective
Definition: Used to refer to one or more things, people, or amounts without being specific.
Example: You can choose any book from the shelf.
adverb
Definition: To any extent or degree; used to indicate that something is possible or allowed.
Example: You can choose any option you like.
determiner
Definition: Used to refer to one or more things, regardless of the amount or number.
Example: Do you have any questions about the homework?
pronoun
Definition: Used to refer to one or more people or things, without specifying which ones.
Example: You can choose any book from the shelf.