Likebook P6 dictionary

I'm not seeing much comment on the P6 but I've used one for several months and enjoy it very much. I like the reader software from Boyue and the P6 also provide significant control over all user interface. And the small size and weight! For comparison, I also have the Kindle Whitepaper and Pocketbook Touch HD3.

I do wonder if anyone has a recommendation for a dictionary that works particularly well with the P6?