Gmail is not set up to allow a single user to have multiple email addresses, but there are workarounds that will allow you to simulate having multiple usernames. Instead of setting up more than one username, Gmail will allow you to redirect multiple accounts into a single inbox. The process for doing this is simple and can be performed from your Gmail account the next time you sign in. Writer Bio

Can You Have Two Different Usernames for the Same Email Address on Gmail  - 89