Username Definition

yo͝ozər-nām
usernames
noun
A name registered with a network, website, etc., that identifies a particular user and, often together with a password, permits access.
Webster's New World
A sequence of characters, different from a password, that is used as identification and is required when logging on to a multiuser computer system, LAN, bulletin board system, or online service.
American Heritage

Other Word Forms of Username

Noun

Singular:
username
Plural:
usernames

Origin of Username

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