Final answer:
The boldfaced word is a predicate nominative, which is a noun or pronoun that follows a linking verb and renames or identifies the subject.
Step-by-step explanation:
The boldfaced word is a predicate nominative.
Predicate nominative is a term used in grammar to describe a noun or pronoun that follows a linking verb and renames or identifies the subject of the sentence. It can also be referred to as a subject complement. For example, in the sentence 'She is a doctor', 'doctor' is the predicate nominative as it renames the subject 'She'.