username

American

[yoo-zer-neym] / ˈyu zərˌneɪm /

noun

Computers.

Also called sign-in name,. Also called login name,. Also called sign-on name. Also called logon 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.

username British

/ ˈjuːzəˌneɪm /

noun

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" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of username

First recorded in 1970–75; user ¹ ( def. ) + name ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In January, a Polymarket trader with the username “HD2” bet nearly $100,000 that BlackRock executive Rick Rieder would be nominated as the next Federal Reserve chair.

From Barron's

Essayli said that on Feb. 20, law enforcement took the victim’s digital devices to try to identify the person behind the username online.

From Los Angeles Times

Law enforcement quickly identified Pysher as the person behind the username on Discord and tracked him to the motel, according to the complaint.

From Los Angeles Times

She can be reached on Signal at the username tparti.37.

From The Wall Street Journal

She can be reached on Signal at the username efindell.10.

From The Wall Street Journal

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023