In the following sentence identify the appositive or appositive phrase and the noun or pronoun defined by the appositive.

Mother gave a birthday gift to Mary, my youngest sister.

Appositive/Appositive phrase:
Noun or pronoun defined:

The Appositive phrase is: My youngest sister

Noun defined is : Mary
that's what I think.

I'll be happy to check what YOU THINK.

Appositive Phrase: My youngest sister

Noun renamed: Mary

In the given sentence, the appositive is "my youngest sister" and the noun defined by the appositive is "Mary".

To identify the appositive, first, we need to look for a phrase that provides additional information about a noun or pronoun in the sentence. In this case, "my youngest sister" is a noun phrase that gives more details about Mary.

Next, we determine which noun or pronoun is defined by the appositive. In this sentence, the noun defined by the appositive "my youngest sister" is "Mary". The appositive clarifies which sister is being referred to, emphasizing that it is the youngest sister.