Synonyms:
- advocacy,
- advocating,
- advocation,
- affidavit,
- attestation,
- authority,
- authorization,
- bill of health,
- certificate,
- certificate of character,
- certificate of proficiency,
- certification,
- character,
- character reference,
- deposition,
- diploma,
- letter of introduction,
- navicert,
- notarized statement,
- note,
- patronage,
- recommend,
- recommendation,
- reference,
- sheepskin,
- sworn statement,
- testamur,
- testimonial,
- ticket,
- visa,
- vise,
- voucher,
- warrant,
- warranty,
- witness