This package allows you to easily export / import dictionary items.
It allows you to export the entire dictionary tree or only individual keys.
IMPORTANT NOTE AFTER INSTALLING THE PACKAGE:
There is a bug in umbraco so you may have to clear the cache on your browser to see the new context menu items.
The project is open source and can be found on github:
https://github.com/dzlotrg/umbraco-dictionary-export-import