I highly recommend this tool, having used it in the past to learn country flags.

Improvements

There are a few changes that could make Anki better:

  1. Improved shared decks. Having decks being shared by default would make it easier to get set and going.
  2. Check flashcards that share the front: it would be useful to check how different people use different definitions for the same front card.
  3. Enable competitions: Enable tournaments where people fight for speed and correctness with the same deck.

Decks to add