English word list with pronunciation [duplicate]

Possible Duplicate:
Where can I obtain an English dictionary with structured data?

Where can I find a digital English-language dictionary or word list containing pronunciation? I would prefer something under an open source or similar license.


Solution 1:

Wiktionary is free, contains IPA pronunciations, and is licensed under Creative Commons.

If you aren't looking for IPA, Merriam-Webster is free and contains pronunciation, but is not open source.