One of the mysteries of the English language finally explained.
Synonyms of confirmation in English:
confirmation
See definition of confirmation
noun
1‘there was no independent confirmation of the reported deaths’
SYNONYMS
corroboration, verification, proof, testimony, endorsement, authentication, substantiation, justification, vindication, support, evidence
2‘confirmation of your appointment is dependent upon satisfactory performance’
SYNONYMS
ratification, approval, authorization, validation, sanction, endorsement, formalization, certification, accreditation, recognition, acceptance
agreement to, consent to