Synonyms of 'certification'

acceptance, affidavit, affirmance, affirmation, approbation, approval, assurance, attestation, authority, authorization, backing, certificate, check, clearance, collation, confirmation, corroboration, countenance, countersignature, credential, deposition, determination, diploma, documentation, enabling, endorsement, enfranchisement, establishment, fiat, fortification, go-ahead, green light, imprimatur, John Hancock, navicert, Nod, note, okay, permission, proof, reinforcement, rubber stamp, sanction, seal, sheepskin, signature, signet, stamp, subscription, support, testimonial, testimony, ticket, visa, vise, voucher, warrant, warranty, witness