An appositive is a noun or noun phrase that renames another noun right beside it. The appositive can be a short or long combination of words. Look at these appositive examples, all of which rename insect:
The insect, a cockroach, is crawling across the kitchen table.
The insect, a large cockroach, is crawling across the kitchen table.
The insect, a large cockroach with hairy legs, is crawling across the kitchen table.
The insect, a large, hairy-legged cockroach that has spied my bowl of oatmeal, is crawling across the kitchen table.
