certification Synonyms

credential certificate authentication documentation corroboration credentials enfranchisement testimonial testimony testification testamur titling substantiation signet sheepskin permit probate proof ratification recognition recognizance registration sanction security titration validation visa signing up keeping records smoking gun notarization MBA legalisation rededication bill of health papers empowerment authorisation authenticator verification licence warranty warrant voucher certificates Accrediting befriending brevet carding certifying