* Noun: This is the most common usage. It refers to a wide street or road.
* Example: "We took a stroll down Fifth Avenue."
* Adjective: It can describe something as relating to a particular avenue.
* Example: "The avenue store had a sale on shoes."
* Verb: This is less common, but "avenue" can act as a verb meaning "to provide access to" or "to make a way for."
* Example: "The new program avenues opportunities for career advancement."
So, without context, it's hard to say definitively which part of speech "avenue" is. You need to look at how it's used in a sentence.