megachurch

[ meg-uh-church ]
/ ˈmɛg əˌtʃɜrtʃ /

noun

an independent church with a very large membership in regular attendance, focusing on an evangelical or conservative Christian theology and offering a variety of educational and social activities.
Also called seeker church.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for megachurch

megachurch

/ (ˈmɛɡəˌtʃɜːtʃ) /

noun

US a church, usually Protestant, with a very large congregation, typically housed in a complex offering sophisticated multimedia presentations and a range of secular facilities and services
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012