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Definition of username noun from the Oxford Advanced Learner's Dictionary

username

noun
 
/ˈjuːzəneɪm/
 
/ˈjuːzərneɪm/
(also user ID)
(computing)
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  1. the name you use in order to be able to use a computer program or system
    • Please enter your username.
    Topics Computersb1
See username in the Oxford Advanced American Dictionary

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