Gmail / Getting Started with Gmail

Create contact labels

You can group contacts together under a single name or label, so that you can email all contacts in a single step. This is similar to creating a distribution list in other email applications such as Outlook. 

Creating labels

To create a contact group or label:

The label will be created and the contacts assigned to the group.  

Adding a contact to an existing label

A single contact can be part of as many groups as required. To add a contact to an existing label: