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to declare that something is true, especially in a formal or official way
She can attest to his honesty.
She can confirm that he is honest.
The document attests that the agreement was signed on June 1st.
The document confirms that the agreement was signed on June 1st.
Often used with 'to' for nouns and 'that' for clauses; common in legal, academic, and official writing.
Use *attest to* when the object is a noun (e.g., *attest to the facts*). Use *attest that* when introducing a clause (e.g., *attest that the contract was signed*).
From Latin *attestari* ‘to bear witness’, from *ad-* ‘to’ + *testari* ‘to testify’, related to *testis* ‘witness’.
Primarily used in formal contexts such as legal statements, academic reports, and official documents. Rarely appears in casual conversation.