Uncheck the Languages/Scripts you do not wish to display and click 'Set Languages'.
e.g. if you know Devnagari script well, you could uncheck the 'Roman Script' option.
Shortcut Key: Alt + Shift + L.
Specify the letters to search for and hit the 'Enter' key or click on 'Search'.
The default action is to search for the characters at the start of the Word.
To search for words ending with the letters, check 'Ends With'.
To change the Language for search, select the Language next to 'in'.
Shortcut Key: Alt + Shift + S.
If checked, Roman Transliteration is shown before Devnagari script for Hindi Words.
The transliteration scheme used is a newly devised intuitive method where:
Capital vowels denote the longer vowel sound
Capital consonants denote the harder consonant sound
Shortcut Key: Alt + Shift + F.
If checked, the opposite language is shown first to assist translators.
If a word is searched for in English, the Hindi synonyms will be displayed before the English ones and vice versa.
Shortcut Key: Alt + Shift + R.
Visual Thesaurus Usage Hints
The Visual Thesaurus gives you a graphical bird's eye view of the associations of any word.
Show/Hide the Visual Thesaurus, by checking/unchecking the box "Visual Thesaurus".
Enlarge/Reduce the Graph to/from Full Screen by checking/uncheking "Zoom Graph".
View associations for any related word by clicking on it.
Center on a group of words by clicking on the Group (box with thicker borders).
Zoom in and out on displayed elements with the middle mouse wheel.
Go Back in the Zoomed View by clicking on 'Go Back'.
Pan the graph by clicking and dragging on an empty area of the graph.
Print the graph by first Enlarging it to Full Screen and then clicking on Print.
Shortcut Key: Alt + Shift + V.
Zoom / Unzoom Graph
Enlarge/Reduce the Graph to/from Full Screen by checking/unchecking "Zoom Graph".
Shortcut Key: Alt + Shift + Z.
Navigate the Graph Back to the previous word.
Shortcut Key: Alt + Shift + B. Internet Explorer Users need to hit the Enter key after the link is focussed.
Arvind Lexicon Professional Edition (Online Dictionary & Thesaurus)