This site has dictionaries for every language imaginable, courtesy of Bucknell University.
These daily words are free.
Stuck for a rhyme? This site is the answer.
A truly international dictionary portal....(American, Russian, French, Algerian, Cherokee...even a Klingon-English dictionary.)
Explains those strange characters-such as ;-) that people put in e-mail or use in the chat rooms.
Great index and a self-test.