Best SEO Idea

This idea was given to me by Vivek's elder brother Hex. I was asking him just like that how I can get more hits from Google. He gave me a perfect idea. He told me to blog the whole engligh dictionary. Dont worry, I am not planning to do anything like that. But I was just wondering , that why does not http://dictionary.com show up for each and every or even 70% of the search terms.
The reason for that is that the URL for say the meaning of "Apple" would include some thinglike - "?", "#" etc. This is not search engine friendly. While Wikipedia has only "-" and a normal "/"
in there URL. That is why the chances of Wikipedia popping up as a search result for a word are more than that of Dictionary.com