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British Dictionary definitions for 2g

2G

abbreviation for
  1. second-generation; a system for mobile phones, characterized by digital technology, internet access, and a short-message service
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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