I never really understood how Dictionary.com justifies charging for their app but either way it is now available for BlackBerry 10. Their premium app gives you access to the same Dictionary.com content you can get for free on their website but their mobile app seems to be a bit buggier. I am really hoping they rush out an update to fix the app though it still kind of works and it does include pronunciation.
Check out Dictionary.com for $2.99 in BlackBerry World. Currently I cannot recommend it but a few readers convinced me that we should still mention it.