attestation

noun

at·​tes·​ta·​tion ˌa-ˌte-ˈstā-shən 

ˌa-tə-ˈstā-

plural attestations

1

: an act or instance of attesting something: such as

a

: a proving of the existence of something through evidence

… a complete and formal attestation of your innocence.

—Edward Bulwer-Lytton

b

: an official verification of something as true or authentic

the notary's attestation of the will

2

: the proof or evidence by which something (such as the usage of a word) is attested

the earliest attestation of the term in print

Synonyms

• confirmation
• corroboration
• documentation
• evidence
• proof
• substantiation
• testament
• testimonial
• testimony
• validation
• voucher
• witness

Examples of attestation in a Sentence

the fact that he spent hours standing in line for the sequel should be attestation enough that he's a die-hard fan of the movie series

Recent Examples on the Web

By removing detailed compliance documentation, particularly attestations tied to secure software development, the order reduces friction in procurement and lowers operational risk. —Emil Sayegh, Forbes.com, 7 June 2025

Virtually anyone could easily create a fake attestation letter and use it as proof of human trafficking. —Frank McKenna, Forbes.com, 12 June 2025

Additionally, the fact that legislation is moving forward at the U.S. level and has the support of the administration has accelerated the developed of stablecoin attestation and auditing standards. —Sean Stein Smith, Forbes.com, 3 May 2025

With the rise of generative AI, digital content faces similar attestation and verification challenges. —Christian Catalini, Forbes, 19 Dec. 2024

Word History

First Known Use

1560, in the meaning defined at sense 1

Rhymes for attestation

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation