Upon start select desired languages
Type starting letters of the word. Words with pictures have a picture icon on the right. You can use ? and * wildcards that substitute one character and any number of characters respectively.
Word description screen contains definitions and relations like synonymy or less generality. You can navigate through the relation graph. Use device Back button to return on the previously visited descriptions. In case text-to-speech pack is installed grey button on the left allows to hear the definition.
Navigation through translation descriptions is done in the same way.
To add additional language sets use menus or icon near top right menu. A language in an additional set provides inward/outward translations to original 25 languages along with translations to the languages within the set.
Icon on the top toggles image only view.
If you can not hear the words and descriptions go to Settings/Language and Input/Text-to-speech. There you can either install any text-to-speech engine or change its settings (under Preferred TTS engine touch icon) by installing more voices (say male voice instead of default female) and adding new languages.
Use the microphone icon near top right corner for voice input. If you do not see the icon or recognition quality is low go to Settings/General management. There you can install new speech-to-text engines. For Google provided languages use Keyboard list and default/Google Voice Typing. For Samsung provided languages use Samsung Keyboard Settings/Voice Input.