I need a Elizabethan dictionary to translate words. This is for a theatre project. can you please help me?

If it's a Shakespearean play, you'll find excellent help here:

http://nfs.sparknotes.com/
Choose the play you are working on, and you'll find all the acts and scenes in two columns -- left column is the original (16th century English), right column is today's English.

Here's something similar for Romeo and Juliet:
http://www.canadianshakespeares.ca/rjfolio.cfm

And this site has information on the old and new language, too:
http://www.bardweb.net/