http://www.freerice.com

It's like call my bluff but you get to earn rice for poor people by playing.

My vocab level is 35 at the moment.

My favourite word I've learnt so far is:

cir·cum·lo·cu·tion (sûr'k?m-l?-ky?'sh?n)
n.

1. The use of unnecessarily wordy and indirect language.
2. Evasion in speech or writing.
3. A roundabout expression.