- 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 email address before the @ sign.
Also called user ID.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- 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
Word Origin and History for user name
Online Etymology Dictionary, © 2010 Douglas Harper