Originally Posted by stehk
Q: How does the kindle decide which dictionary to use
A: You can change the primary dictionary under menu -> settings -> menu -> change primary dictionary. This dictionary will be used for every book, with one exception:
Each book has a language-metadata entry. If a book is- say german- and you have a german dictionary on your device it will be used regardless of your dictionary.
So what happens if you have more than one German dictionary? Which one gets used?