How do I switch languages in bilingual dictionaries/Thesaurus?

In bilingual dictionaries (for example English-German or English-Italian) or dictionaries featuring more than one entry list (such as Dictionary & Thesaurus) you can easily switch between either entry list with a single touch.

This is done from either the Home page or the Dictionary menu, at the top of the screen below the search bar there’s an icon with two arrows pointing in opposite directions.

Tapping on the icon will change the entry lists, the currently active language/entry list will always be on the left, while the inactive one on the right.