Go to Following Location and Change as your require names
<alfresco>tomcat\webapps\share\WEB-INF\classes\alfresco\messages\slingshot.properties
## Roles
role.SiteManager=Manager
role.SiteManager.description=has full rights to all site content - what they have created themselves and what other site members have created.
role.Collaborator=Collaborator
role.Collaborator.description=has full rights to the content that they own; they have rights to edit but not delete content created by others.
role.SiteCollaborator=Collaborator
role.SiteCollaborator.description=has full rights to the site content that they own; they have rights to edit but not delete content created by other site members.
role.Contributor=Contributor
role.Contributor.description=has full rights to the content that they own; they cannot edit or delete content created by others.
role.SiteContributor=Contributor
role.SiteContributor.description=has full rights to the site content that they own; they cannot edit or delete content created by other site members.
role.Consumer=Consumer
role.Consumer.description=has view-only rights; they cannot create their own content.
role.SiteConsumer=Consumer
role.SiteConsumer.description=has view-only rights in a site; they cannot create their own content.
role.Coordinator=Coordinator
role.Coordinator.description=has full rights to all content - what they have created themselves and what others have created.
role.Editor=Editor
role.Editor.description=has rights to edit file properties and check files in and out; they cannot create their own content.
roles.readassociations=Consumer
