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

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 Cole County Circuit Judge Jon Beetem also ordered Greitens' office to compile a list of staffers who downloaded the Confide app, their phone numbers and usernames. Fox News, "The Latest: Incoming Missouri governor holds prayer service," 1 June 2018 As of right now, there is no verified Twitter account with the username @SussexRoyal. Nicole Saunders, Harper's BAZAAR, "Meghan Markle and Prince Harry Just Shattered an Instagram Guinness World Record," 3 Apr. 2019 Only one person may use the username and password associated with a digital product account. Harper's BAZAAR, "Terms of Sale," 5 Feb. 2019 Once the influencer logged in with the Instagram username and password, Brooks seized control of the account. Casey Newton, The Verge, "How Facebook’s crisis PR firm triggered a PR crisis," 17 Nov. 2018 Reshared posts appear in the feed underneath the username and photo of the user who shared it. Casey Newton, The Verge, "Instagram is testing a native resharing feature for the feed," 20 Sep. 2018 Counts two through nine charge those 11 defendants with aggravated identity theft by employing usernames and passwords of victims in order to commit computer fraud. Jen Kirby, Vox, "Rod Rosenstein announces Russian indictments: “Blame for election interference belongs to the criminals”," 13 July 2018 The investigation began after Diebold, using the username KuteCop4You, posted an ad on a social-media app, CBS affiliate KDKA reported, citing the criminal complaint. Kristine Phillips, Washington Post, "He was a beloved small-town police chief. Now he’s accused of trying to have sex with a child.," 7 Jan. 2018

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

2 May 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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something valued as if it were money

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