Good, several improvements needed

The pronunciation is a great feature of this lightweight app.
I have 3 minor quibbles:
1) Unlike the standard dictionary app, this app does not load words in real time. You have to press enter after typing the word.
2) The app switches back to dictionary mode after each word search. If you use the thesaurus feature a lot, it becomes aggravating.
3) Look and feel of OS X Lion would be nice, the interface is efficient but a bit dated.

hwlin about WordBook English Dictionary and Thesaurus