You can view the meaning of any word from anywhere at anytime. It can be used with any app, such as web browser,whatsapp,facebook,doc reader etc..
To use this function Enable it from main app. and you may close the app. Then select the word that you want the meaning and copy it. touch on the pop-up that appear at the top, that's it. Simply touch anywhere to dismiss the window.
Whatsapp and other IM usage Tip:
In IM when you copy the message, whole sentence is copied we recognize only the first word from the sentence.
So copy the whole sentence to compose box then select the desired word from there and copy it.
Needs Android version 3.0+.
Some Android 4.3 users may encounter force close because of the Android bug in 4.3.