Meaning of (आपरिवर्तन) aparivartan in english
As verb :
modulate Ex:  He has to learn how to modulate his voice properly.
Suggested : to regulate by or adjust to a certain measure or proportion soften tone down
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(आपरिवर्तन) aparivartan
can be used as verb.. No of characters: 9 including vowels consonants matras.
Transliteration :
aaparivartana