us·​er·​name | \ ˈyü-zər-ˌnām How to pronounce username (audio) \
variants: or less commonly user name
plural usernames or user names

Definition of username

: a sequence of characters that identifies a user when logging onto a computer or website

called also user ID

Examples of username in a Sentence

Recent Examples on the Web

Of course, most people using Venmo are aware that their transactions—typically represented with a short description or a series of emoji—are visible to anyone who searches their username. Dan Salmon, WIRED, "I Scraped Millions of Venmo Payments. Your Data Is at Risk," 26 June 2019 This measure requires a second step -- aside from a username and password -- to access an account., "Massive DHS data breach raises questions about Oregon’s cybersecurity protocols," 24 June 2019 But this is not the first time that Musk has changed his Twitter username. Patrick May, The Mercury News, "Is Elon Musk really ditching Twitter? 5 other notables who have deleted social media accounts," 17 June 2019 Two winners will each get to bring a friend to Bowl With Brantley, with entries open to anyone using their Sixthman username. Ben Crandell,, "Brantley Gilbert cruise: Country stars sailing from Miami on Nov. 4," 14 June 2019 This enables us to personalise our content for you, greet you by name and remember your preference (for example, your username) Targeting cookies. The Christian Science Monitor, "Privacy Policy," 22 May 2018 To sign up for an account, ProtonVPN requires a username, email, and password. Ian Paul, PCWorld, "ProtonVPN review: Underground data centers, one-click multi-hop, and more make for a great choice," 4 Sep. 2018 Hackers breached Under Armour's MyFitnessPal app in late February, compromising usernames, email addresses, and passwords from the app's roughly 150 million users. Lily Hay Newman, WIRED, "The Worst Cybersecurity Breaches of 2018 So Far," 9 July 2018 In part, that’s because websites currently ask you to log in and store a username and password within the site itself. Mark Hachman, PCWorld, "WebAuthn: What you need to know about the future of the passwordless Web," 7 Mar. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'username.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of username

1971, in the meaning defined above

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Dictionary Entries near username


user fee




use to

use up

Statistics for username

Last Updated

11 Jul 2019

Look-up Popularity

Time Traveler for username

The first known use of username was in 1971

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More from Merriam-Webster on username

Nglish: Translation of username for Spanish Speakers

Britannica English: Translation of username for Arabic Speakers

Comments on username

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an act or instance of editing or removing

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