This plug-in provides a command for changing the dictionary used in the current view. To switch for instance to the English dictionary, execute the "Switch language: en_GB" command.
To install this plug-in simply clone this repository into your "Packages" directory:
cd ~/Library/Application\ Support/Sublime\ Text\ 2/Packages git clone https://github.com/zerok/Sublime2-SwitchLanguage.git SwitchLanguage
SwitchLangauge creates a command for every dictionary it can find in your Packages directory. To initialize the commands, execute "Update Language Commands"