Meaning of (प्रसार या विस्तारण) prasara/vistaran in english
As noun :
extension Ex:  The first is the customize extension
Suggested : an act or instance of extending
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(प्रसार या विस्तारण) prasara/vistaran
can be used as noun.. No of characters: 18 including consonants matras.
Transliteration :
prasaara/vistaaraNa