noun Computers.
Also called login name, logon name, sign-in name, sign-on name. a unique sequence of characters used to identify a user and allow access to a computer system, computer network, or online account.
the part of an e-mail address before the @ sign.
Also called user ID. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
username (ˈjuːzəˌneɪm)
computing a name that someone uses for identification purposes when logging onto a computer, using chatrooms, or as part of his or her e-mail address

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source's 21st Century Lexicon
Main Entry:  username
Part of Speech:  n
Definition:  the unique set of characters identifying a user of a shared computer program, system, or network, which allows access when coupled with a password; also written user name, also called user ID
Etymology:  1971-76's 21st Century Lexicon
Copyright © 2003-2014, LLC
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Example sentences
Visit my blog at the website of my username for more information.
As far as this subject goes, my username says it all: nothing.
The username is randomly generated by the site, haven't got round to changing it.
Your username was created by you during the registration process.
Related Words
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