* Adjective: This is the most common usage, describing something as being of a past era, especially one considered to be of high quality. Example: "She has a vintage car."
* Noun: This refers to the year a wine was produced, or can be a more general term for a particular period or style. Example: "The winemaker is known for his 2010 vintage."
* Verb: This is less common, but it means to collect or gather something, often wine. Example: "We vintage grapes every autumn."
So, without context, it's hard to say for sure which part of speech "vintage" is. You need to look at how it's used in a sentence!