Bhav
I tried a scrabble app on my tablet recently. The words it comes up with due to having full dictionary access as so lame, literally words that nobody has ever heard or used.
I know a man who plays in Scrabble tournaments in The US (and is highly ranked in his class).
As he says "It's not about knowing what the words mean but about how to spell them correctly". Over time he has "memorized" tens of thousands of words. Doesn't know the meanings but maybe a 10th of them.