username
noun
a unique sequence of characters used to identify a user and allow access to a computer system, computer network, or online account.
usernames
-
pluralof username.plural
The grammatical form denoting more than one person, place, thing, or idea.
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.
Chainalysis, a blockchain analytics firm used by police, government agencies and others, disclosed a hack Friday that compromised usernames and email addresses.
From The Wall Street Journal ● Nov. 2, 2026
Meta said the feature was not yet live in India and that it had already reserved usernames for public figures and verified accounts.
From Barron's ● Jul. 2, 2026
He used usernames such as "Trans Girl Leah", "amzyyyy09", and "ComeDeal" to target victims in London and across the UK.
From BBC ● Jun. 19, 2026
That co-conspirator, Tycen C. Proper, of Danville, Ohio, identified Roa and Thomas as part of the plot, and shared social media usernames, according to the criminal complaint.
From Los Angeles Times ● Jun. 17, 2026
I look at her cell, and yes, there are some names I recognize, because they have some ego-driven usernames that they mix in with the instrument they play.
From "Split the Sky" by Marie Arnold
