attest
Vouch under oath
To attest is to affirm something is true or genuine, often in an official capacity: The notary attested the signature.
Witnesses attest to facts they've observed.
Documents attest to qualifications.
The word carries formal weight—you don't attest to liking pizza.
Something that attests to a quality serves as evidence of it: His success attests to years of hard work.
Officially certify documents
- accreditFormally recognize as qualified
- validateConfirm as true
- ratifyFormally confirm agreement
- authorizeGrant formal permission
license · sanction · approve · confirm · warrant · vouch · credential · legitimize
One who saw events
- depositionFormal testimony under oath
- swornBound by formal promise
- statementExpressed claim or fact
- observePerceive with attention
deponent · affiant · signatory · cosigner · notary · firsthand · presence · signature
Confirming truth or accuracy
- corroborationEvidence confirming another account
- substantiateProve something is true
- authenticateConfirm as genuine
- proveEstablish as fact
validate · establish · demonstrate · ascertain · support · confirm · vouch · check
Confident statement of fact
- affirmationPositive statement of truth
- declarationFormal public announcement
- avowalOpen declaration of belief
- proclamationFormal public announcement
oath · swearing · pledge · statement · pronouncement · profession · asseveration · claim
Demonstration of truth
- documentationWritten proof or instructions
- substantiationProof of truth
- demonstrationPublic display of opinion
- confirmationEstablishing something as true
verification · indication · sign · corroboration · exhibit · record · affidavit · deposition
Truly what it claims
- legitimateConforming to accepted standards
- validLegally or logically sound
- originalFirst or inventive
- bona fideAuthentic and sincere
real · authentic · verifiable · credible · trustworthy · undisputed · veritable · accurate
notarize
Officially certify documents
authorize · license · sanction · approve · confirm · warrant · vouch · credential · legitimize · formalize
eyewitness
One who saw events
- depositionFormal testimony under oath
- swornBound by formal promise
- statementExpressed claim or fact
observe · deponent · affiant · signatory · cosigner · notary · firsthand · presence · signature · swear
validation
Confirming truth or accuracy
- corroborationEvidence confirming another account
- substantiateProve something is true
- authenticateConfirm as genuine
prove · validate · establish · demonstrate · ascertain · support · confirm · vouch · check · vet
assertion
Confident statement of fact
- affirmationPositive statement of truth
- declarationFormal public announcement
- avowalOpen declaration of belief
proclamation · oath · swearing · pledge · statement · pronouncement · profession · asseveration · claim · maintain
proof
Demonstration of truth
- documentationWritten proof or instructions
- substantiationProof of truth
- demonstrationPublic display of opinion
confirmation · verification · indication · sign · corroboration · exhibit · record · affidavit · deposition · certificate
genuine
Truly what it claims
- legitimateConforming to accepted standards
- validLegally or logically sound
- originalFirst or inventive
bona fide · real · authentic · verifiable · credible · trustworthy · undisputed · veritable · accurate · factual
- approvalsapproved, approve, authorizing, certification, endorsing
- acknowledgeadmit, confess, concede, recognize, confirm
- approvalapprove, approval rating, agree, accept, thumbs-up
- assertionsassertions, asserting, assert, statements, stating
- pledgesvow, promise, I promise, wedding vows, I vow
- testimony wordsdepose, swear, vouch, affirm, certify