username

American  

[yoo-zer-neym] / ˈyu zərˌneɪm /

noun

Computers.

1. 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.

2. the part of an email address before the @ sign.

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username British  

/ ˈjuːzəˌneɪm /

noun

1. 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

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Etymology

Origin of username

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

Example Sentences

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

She explains that I have to create an account, starting with a username and password.

From Literature

“What do you want your username to be?” she asks me.

From Literature

“It’s rare we get a non-temp market with so much attention and liquidity like this,” says a 31-year-old New York-based Kalshi trader whose username is NelsonOrAri.

From Barron's