as in to certify
to declare (something) to be true or genuine the appraiser attests that the lamp is indeed an original Tiffany

Synonyms & Similar Words

as in to testify
to make a solemn declaration under oath for the purpose of establishing a fact an eyewitness who will attest to my innocence

Synonyms & Similar Words


Synonym Chooser

How does the verb attest contrast with its synonyms?

Some common synonyms of attest are certify, vouch, and witness. While all these words mean "to testify to the truth or genuineness of something," attest applies to oral or written testimony usually from experts or witnesses.

attested to the authenticity of the document

When would certify be a good substitute for attest?

The words certify and attest can be used in similar contexts, but certify usually applies to a written statement, especially one carrying a signature or seal.

certified that the candidate had met all requirements

When could vouch be used to replace attest?

The meanings of vouch and attest largely overlap; however, vouch applies to one who testifies as a competent authority or a reliable person.

willing to vouch for her integrity

When is witness a more appropriate choice than attest?

Although the words witness and attest have much in common, witness applies to the subscribing of one's own name to a document as evidence of its genuineness.

witnessed the signing of the will

Thesaurus Entries Near attest

Cite this Entry

“Attest.” Thesaurus, Merriam-Webster, Accessed 21 Jul. 2024.

More from Merriam-Webster on attest

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