certify
WordReference English Thesaurus © 2025
Sense: To give assurance
Synonyms:
guarantee Collocations, accredit, vouch for, endorse Collocations, approve Collocations, assure, reassure Collocations, validate Collocations, verify Collocations, confirm Collocations, corroborate, support Collocations, stand by, stand behind, swear by, assert, testify, substantiate, vouch, witness Collocations
Sense: To state formally
Synonyms:
attest Collocations, verify Collocations, swear, confirm Collocations, declare Collocations, testify, state Collocations