attestation has definitions from the fields of law,writing
1
[ noun ] (law,writing) written declaration made under oath; a written statement sworn to be true before someone legally authorized to administer an oath
2
[ noun ] (law) noun.group:law,;c the action of bearing witness

Related terms

testimony testify

3
[ noun ] (law) the evidence by which something is attested

Related terms

evidence attest

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