An account name is a unique and identifiable name that is given to a person, business, or organization's account. It helps to identify and distinguish one account from another within a system or platform. Full definition
Now, you access the sign out option by clicking your user account name at the very top of the Start menu. (howtogeek.com)
*, User account names also can not end up with a period. (carifred.com)
Further, domestic cryptocurrency exchanges will see a mandate to only process deposits and withdrawals to traders with matching account names at their banks and exchanges. (cryptotimes.news)