A source of support can come in many forms, such as a BACKER (6 letters), FAN (3 letters), bra (3 letters), CRUTCH (6 letters), PROP (4 letters), GIRDER (6 letters), or PILLAR (6 letters). A BACKER is someone who financially supports a project or cause. A FAN is an enthusiastic admirer of a person, team, or activity. A bra is an undergarment that provides support to the breasts. A CRUTCH is a device used to provide support and stability for someone with a disability or injury. A PROP is an object used to support or enhance a performance. A GIRDER is a large beam used to support a structure. Finally, a PILLAR is a vertical structure that supports a building or other structure.