Ugh. A dictionary. Ancient. Boring.
Nope. Totally wrong. A long-time language learner myself, and a language lover I came across some really cool stuff at the Merriam -Webster Dictionary on-line site (just please don’t check it out in class, pleads the teacher in me):
Test your vocabulary: www.merriam-webster.com/quiz/index.htm
The commonly misspelled word quiz (misspelled being one of them): www.merriam-webster.com/spell-it/index.htm
Visual vocabulary quiz: www.merriam-webster.com/namethatthing/index.htm
and my favorite for upper level students: www.merriam-webster.com/top-ten-lists/top-10-simple-but-intelligent-words-vol-2/paradigm.html
Have FUN with your language!