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verb : ATTEST
) provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes; "His high fever attested to his illness"; "The buildings in Rome manifest a high level of architectural sophistication"; "This decision demonstrates his sense of fairness" ;
) authenticate, affirm to be true, genuine, or correct, as in an official capacity; "I attest this signature" ;
) establish or verify the usage of; "This word is not attested until 1993" ;
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