Definition of attest in English:


Syllabification: at·test
Pronunciation: /əˈtest


[with object]
1Provide or serve as clear evidence of: his status is attested by his recent promotion [no object]: his numerous drawings of ships attest to his fascination with them
More example sentences
  • Compaq's growth, in particular, is attested by anecdotal evidence from industry.
  • Substantial evidence now attests to the extent of doctors' unhappiness with the state of their relationships with managers.
  • No certain archaeological evidence exists to attest these invasions, and there is still much uncertainty about the route taken and places visited.
1.1 [no object] Declare that something exists or is the case: I can attest to his tremendous energy [with clause]: the deceased’s attorney attested that he had been about to institute divorce proceedings
More example sentences
  • I know a few professors who can attest to this.
  • Numerous young professional players can attest to his tireless encouragement and invaluable expertise.
  • Many highly trained professionals can attest to the irrelevance of evolutionary theory.
1.2Be a witness to; certify formally: the witnesses must attest and sign the will in the testator’s presence
More example sentences
  • Skaters desirous of taking part in trials should bring their birth certificates duly attested by principals of their respective schools.
  • They had no intention to verify or attest the Deceased's signature.
  • Participants must be present at the venue with bona fide certificates attested by their school head master or principals.


early 16th century: from French attester, from Latin attestari, from ad- 'to' + testari 'to witness' (from testis 'a witness').



Pronunciation: /ˌateˈstāSHən/
More example sentences
  • A copy of the attestation, or certificate stating that you are the owner of the property, should be issued to you within three months.
  • The journalist is also in breach of an oath of attestation that he made in becoming a police constable.
  • The 44-year-old ex-Metropolitan Police Assistant Commissioner took over from David Wilmot today - and became the first policeman in Britain to take the new oath of attestation.

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