Which phrase defines an appositive?

An appositive is a noun or noun phrase that renames or identifies another noun or noun phrase in the sentence.

An appositive is a noun or noun phrase that provides additional information or clarification about another noun or noun phrase in a sentence. It is placed right beside the noun it renames or describes, typically separated by commas.

An appositive is a noun or noun phrase that provides additional information or clarification about another noun or noun phrase in a sentence. It is usually placed immediately after the noun it modifies and is separated by commas. The function of an appositive is to provide more detail or context to the noun it is referring to. To identify an appositive in a sentence, you can look for a noun or noun phrase that appears next to another noun and provides further explanation or description of that noun.