| Diploma (n.) A letter or writing, usually under seal, conferring some privilege, honor, or power; a document bearing record of a degree conferred by a literary society or educational institution. Thesaurus Entries affidavit, attestation, authority, authorization, bill of health, brevet, certificate, certificate of proficiency, certification, charter, concession, credential, deposition, franchise, grant, letters patent, liberty, navicert, notarized statement, note, patent, royal grant, sheepskin, sworn statement, testamur, testimonial, ticket, visa, vise, voucher, warrant, warranty, witness |