Definition of username in English:

username

Syllabification: us·er·name
Pronunciation: /ˈyo͞ozərˌnām
 
/

noun

An identification used by a person with access to a computer, network, or online service.
More example sentences
  • Paid access informational sites have usernames and passwords, which travel with you as you go from page to page.
  • Anyone who knows my username and password can access resources intended for me, even if they're not really me.
  • One cannot expect that ordinary users have different usernames, passwords and e-mail addresses for all of the Web sites that they visit.

Definition of username in:

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Pronunciation: ˈgʌz(ə)l
verb
eat or drink (something) greedily