| certification(noun, order, information, reason, contract) |
| credential |
| proof(noun, permit, evidence, authorization, witness) |
| certificate(noun, text, order, permit, record) |
| reference(noun, character, recommendation) |
| confirmation(noun, information, reason, picture, evidence) |
| card |
| diploma(noun, certificate) |
| qualifications(noun, drive, power, experience, family) |
| substantiation(noun, information, reason, picture, evidence) |
| testimonial(noun, point, level, class, quantity) |
| attestation(noun, information, reason, permit, picture) |
| authentication(noun, information, reason, permit, sanction) |
| background(noun, family, circumstances, upbringing) |
| corroboration(noun, information, reason, picture, evidence) |
| demonstration(noun, information, reason, picture, evidence) |
| document(noun, communication, permit, file, authorization) |
| documentation(noun, permit, authorization, identification) |
| documents(noun, information, reason, picture, evidence) |
| recommendation(noun, permit, authorization, identification, certification) |