* Noun: This is the most common usage. It refers to a specific example or occurrence of something.
* *For instance, I love to eat pizza.*
* Verb: This usage is less common, but it means "to cite as an example."
* *He instanced the recent rise in crime as a reason to be concerned.*
Let me know if you have a specific sentence in mind, and I can help you determine the part of speech of "instance" in that context.