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first name

noun
  1. given name.
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Origin of first name

Middle English word dating back to 1200–50

first-name

[adjective furst-neym; verb furst-neym]
adjective
  1. of or relating to one's first, or given, name; familiar; intimate: They were on a first-name basis soon after meeting.
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verb (used with object), first-named, first-nam·ing.
  1. to address (someone) by his or her first name, especially as a sign of informality or familiarity: The boss doesn't like the employees to first-name her.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for firstname

first name

noun
  1. a name given to a person at birth, as opposed to a surnameAlso called: Christian name, forename, given name
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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