What is inter?

It seems like your request is incomplete or unclear, as "inter" could refer to a variety of topics. Here are several possibilities for what "inter" might refer to, and some brief information about each:

1. Inter Milan (F.C. Internazionale Milano):

   • An Italian professional football club based in Milan, Lombardy.
   • Founded in 1908, Inter has won numerous domestic and international titles, including Serie A championships and the UEFA Champions League.
   • Known for its black and blue striped jerseys.

2. Inter- (prefix):

   • A Latin prefix meaning "between" or "among."
   • Used in English to form words that express relationship or interaction between things, such as "international" (between nations) or "interpersonal" (between people).

3. Inter Island Airways:

   • A regional airline primarily serving American Samoa and nearby areas.
   • Focuses on providing connectivity between islands with small, local markets.

4. Inter Partes Review (IPR):

   • A proceeding in the United States Patent and Trademark Office.
   • Allows third parties to challenge the validity of a patent post-grant.
   • It is part of efforts to improve patent quality and resolve disputes efficiently.

5. Internecine:

   • An adjective often referring to conflict or struggle within a group or organization.
   • Derived from the Latin "internecinus," meaning destructive or murderous.

If you meant something else by "inter," please provide more context, and I'd be happy to help with more specific information!