Just answering to dictionary game, the purpose of that is to spot the words and then remember where they are. This will boost your photographic memory and I think you will get the meanings as well when you are very used to it. (although I am not sure yet)
Anyway, I have been PR a dictionary and my ability to spot a word increased from almost 0% to about 30-40% within two weeks. I am still in development and I am going for 60% correct.
By the way, ALex's encouragement was very helpful when I was frustrated not spotting words correctly. Anyway, thank you Alex! 
