Have you ever wanted to change the default role names “Administrator, Editor, Author, Contributor, Subscriber” within wordpress? Add this little snippet to the functions.php of your wordpress theme. This snippet will let you change any of the existing role names to anything that you would like. This will of course display within the role select menu for users.
“Please note this does not add a new role or permanently change the name”read more
Adding this snippet to the functions.php of your wordpress theme will allow authors to edit other users posts.read more