UID - a name or number used to identify a specific individual user when accessing a remote system - often has to be followed by a password
This is the account reference name sent to you in the Account Activation Letter. When you need to log on to your site, you will use this item. A User ID is sometimes referred to as a 'user name'.
A unique character string that identifies users.
a unique identifier selected by a person opening an account. At WebCom, you can potentially have two different User IDs. One for your WebCom service plan and one for your WebCommerce store.
Name or nickname that identifies the user of a computer system or network. See also password