A PHOTO ID is an identification document that includes a photograph of the person who is being identified. It is typically used to verify the identity of an individual in a variety of situations, such as when applying for a job, entering a secure facility, or when traveling. The term PHOTO ID can be broken down into two parts: CAPTION (7 letters) and UPI (3 letters). CAPTION refers to a brief description or explanation accompanying a photograph, while UPI stands for Universal Product Identifier, which is a unique code assigned to a product or service.