Arch nemesis are friends from a long time ago that have more or less equivalent powers, but also have oposing ideologies. They are therefore always fighting with each other. Examples:
- Obi Wan and Darth Vader
- The Republican and Democratic Parties
- Obi Wan and Darth Vader
- The Republican and Democratic Parties
Professor Xavier and Magneto are eachother's arch-nemesis. They play chess together and have been friends for a long time, but they completely disagree about the relationship that mutants should have with humans, so they are always fighting.
by David Aaron Smith June 07, 2007

Emotionally easy, bland, abstract art that capitalists buy to hang on their walls, most commonly seen in hotels and dentist offices.
Despite their large size, I didn't even notice the five new capstraction pieces in my office. Apparently they've been there for a month now.
by David Aaron Smith December 19, 2014
