tah·sil·dar also tah·seel·dar (t?-s?l?där?)n. A district official in India in charge of revenues and taxation.[Urdu ta?s?ld?r, from Persian : ta???l, collection, revenue (from Arabic, infinitive of ?a??ala, to acquire, collect, derived stem of ?a?ala, to occur, obtain; see ??l in Semitic roots) + -d?r, having; see dher- in Indo-European roots.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.tahsildar (t??si?ld??) n (Government, Politics & Diplomacy) the officer in charge of the collection of revenues, etc, in a tahsil[C18: via Hindi from Persian, from tahsil + Persian -d?r having]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014