Attest — Meaning, Definition & Synonyms

verb /ə-ˈtest/ at·test

Meaning & Definition of Attest

Attest (verb)

  1. to affirm to be true or genuine; specifically, to authenticate by signing as a witness
  2. to authenticate officially
  3. to establish or verify the usage of

Attest (verb) — Senses, Synonyms & Antonyms

  1. to declare (something) to be true or genuine

    "the appraiser attests that the lamp is indeed an original Tiffany"

    similar: authenticate, avouch, certify, testify (to), vouch (for), witness
    related: guarantee, warrant, affirm, assert, aver, avow, profess, vow

  2. to make a solemn declaration under oath for the purpose of establishing a fact

    "an eyewitness who will attest to my innocence"

    similar: depose, swear, testify, witness, bear witness
    related: verify, vouch, promise, vow

  3. to give evidence or testimony to the truth or factualness of

    "I'll attest that she was at the party"

    similar: argue, authenticate, bear out, certify, confirm, corroborate, substantiate, support, validate, verify, vindicate
    related: avouch, back (up), testify (to), vouch (for), witness, guarantee, warrant, affirm, assert, aver, avow, declare, profess, demonstrate, document, establish, prove, reinforce
    opposite: disprove, rebut, refute
    near: contradict, gainsay, deny, disavow, disclaim, challenge, contest, dispute, question

Synonyms, Thesaurus & Another Word for Attest

The most common words with a similar meaning to Attest:

authenticate, avouch, certify, testify (to), vouch (for), witness, depose, swear, testify, argue, bear out, confirm, corroborate, substantiate, support, validate, verify, vindicate, bear witness

Antonyms & Opposite Words for Attest

Words with the opposite meaning of Attest:

disprove, rebut, refute

Related Words for Attest

guarantee, warrant, affirm, assert, aver, avow, profess, vow, vouch, promise, back (up), declare, demonstrate, document, establish, prove, reinforce

Near Antonyms of Attest

contradict, gainsay, deny, disavow, disclaim, challenge, contest, dispute, question

Word Forms of Attest

Inflections: attested, attesting, attests

Derived words: attester (noun)

Origin & Etymology of Attest

Middle French attester, from Latin attestari, from ad- + testis witness testament

First known use: circa 1500t

Vocabulary Lists & Topics for Attest

Frequently Asked Questions about Attest

What does "Attest" mean?

"Attest" means to affirm to be true or genuine; specifically, to authenticate by signing as a witness. As a verb, it is defined as: to affirm to be true or genuine; specifically, to authenticate by signing as a witness. It has 3 distinct senses.

What is another word for "Attest"?

Other words for "Attest" include authenticate, avouch, certify, testify (to), vouch (for), witness, depose and swear. The best synonym depends on which meaning of "Attest" you intend.

What are different ways to say "Attest"?

There are 36 words and phrases with a similar meaning to "Attest". Common alternatives include authenticate, avouch, certify, testify (to), vouch (for), witness, depose, swear, testify and argue.

What is the opposite of "Attest"?

Antonyms of "Attest" include disprove, rebut and refute. Near antonyms include contradict, gainsay, deny and disavow.

How do you use "Attest" in a sentence?

Examples of "Attest" in a sentence: "the appraiser attests that the lamp is indeed an original Tiffany"; "an eyewitness who will attest to my innocence"; "I'll attest that she was at the party".

Is "Attest" a noun, verb, or adjective?

"Attest" is a verb.

Is "Attest" useful for IELTS, TOEFL, and other English exams?

As a C2-level word, "Attest" is typical of Cambridge C2 Proficiency (CPE), IELTS band 8.5–9.0, TOEFL iBT 114–120, PTE Academic 85–90. Advanced words like this are also useful for the GRE, SAT, GMAT, and LSAT.

How do you pronounce "Attest"?

"Attest" is pronounced /ə-ˈtest/ and divided into syllables as at·test.