Free (For Now) – iDict Deluxe
The iDict Series is a series of "primary language oriented" dictionaries. That means that most of their offerings begin with your primary language (in this case English) and then offer translations of words to a number of different languages.
Their Quick Deluxe version offers translation to and from 157 different languages. While it normally costs $9.99 it is free for the next three days.
If you have the need to translate words from one language to another this is a great utility and might well be worth picking up. Moreover, for the next three days, if you might EVER need to translate words from one language to another this is something you should DEFINITELY pick up while it is free.
You can get iDict Deluxe for free HERE in the App Store.