What is an appositive phrase

An appositive phrase is a noun phrase that provides additional information or clarifies the noun or pronoun that comes right before it. It typically appears immediately after the noun or pronoun it modifies and is set off by commas. The appositive phrase can add descriptive details, identify the noun with a specific name or title, or provide more specific information about the noun.

For example:
- My friend, a talented musician, played the piano at the concert. ("a talented musician" is the appositive phrase that provides additional information about "my friend")
- My grandfather, John Johnson, is a retired engineer. ("John Johnson" is the appositive that identifies "my grandfather" with a specific name)
- The insect, a large cockroach, scurried across the floor. ("a large cockroach" is the appositive phrase that provides more specific information about "the insect")