I find the dictionary pretty useful, but sometimes there are several meaning for one word (the example I am thinking of right now is "to be Jealous")...I think it would be helpful to show in the dictionary (where applicable) what lesson the vacubulary word is taken from?
I would then be able to read the lesson notes relating to the word and get more information, this could then, for example, help to know which word would be best for different social situations...I guess maybe I am just being lazy and should invest in a good dictionary.