For the younger students and beginners I would also recommend BaBaDum, which is a beautiful site where you can learn 1500 words by playing simple "games".

 - [BaBaDum][1]

The menus of the site itself are available in 20 different languages.

[![BaBaDum - click on the matching object][2]][2]

[![BaBaDum - menus in 20 languages][3]][3]


  [1]: https://babadum.com/
  [2]: https://i.sstatic.net/OPK6d.png
  [3]: https://i.sstatic.net/ukZpk.png