Legal dictionary's
As a law student, i came accross a class in college, where i had to learn some legal expressions / tearms, like "abuse of discretion", "compensatory damages", .. The explanation of such complex words can be hard, so i've found 2 really cool online dictionary's, which may help you with legal terminology ..
http://dictionary.law.com/ - really good dictionary, with long and complex explanations
http://dictionary.getlegal.com/ - good dicrionary, with short but various explanations