What part of speech is metropolitan?

"Metropolitan" can be a few different parts of speech, depending on how it's used:

* Adjective: Describing something related to a city or its surrounding area.

* Example: "They live in a metropolitan area."

* Noun: Referring to a city or its residents.

* Example: "The metropolitan of New York City is very diverse."

* Proper noun: When referring to a specific metropolitan area, such as "Metropolitan Detroit".

Let me know if you have a specific example sentence and I can tell you which part of speech it is in that instance!