DIPLOMA (Greek, from διπλός, double), originally denoted any charter, letter, or other composition written on paper or parchment, and folded. In its modern acceptance it denotes an instrument or letter, duly signed, which confers some privilege, honour, or authority. Such are the diplomas given to graduates of colleges; to clergymen who are licensed to exercise the ministerial function; to physicians and surgeons who are licensed to practise their professions; to agents authorized to transact business for their principals, &c. See DIPLOMATICS.