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View synonyms for certify

certify

[ sur-tuh-fahy ]

verb (used with object)

, cer·ti·fied, cer·ti·fy·ing.
  1. to attest as certain; give reliable information of; confirm:

    He certified the truth of his claim.

    Synonyms: guarantee, validate, verify, corroborate

  2. to testify to or vouch for in writing:

    The medical examiner will certify his findings to the court.

  3. to guarantee; endorse reliably:

    to certify a document with an official seal.

  4. to guarantee (a check) by writing on its face that the account against which it is drawn has sufficient funds to pay it.
  5. to award a certificate to (a person) attesting to the completion of a course of study or the passing of a qualifying examination.
  6. to declare legally insane and committable to a mental institution.
  7. Archaic. to assure or inform with certainty.


verb (used without object)

, cer·ti·fied, cer·ti·fy·ing.
  1. to give assurance; testify; vouch for the validity of something (usually followed by to ).

certify

/ ˈsɜːtɪˌfaɪ /

verb

  1. to confirm or attest (to), usually in writing

    the letter certified her age

  2. tr to endorse or guarantee (that certain required standards have been met)
  3. to give reliable information or assurances

    he certified that it was Walter's handwriting

  4. tr to declare legally insane
  5. tr (of a bank) to state in writing on (a cheque) that payment is guaranteed


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Derived Forms

  • ˈcertiˌfier, noun

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Other Words From

  • certi·fier noun
  • pre·certi·fy verb (used with object) precertified precertifying
  • re·certi·fy verb (used with object) recertified recertifying
  • un·certi·fying adjective

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Word History and Origins

Origin of certify1

1300–50; Middle English certifien < Middle French certifier < Late Latin certificāre, equivalent to Latin certi- (combining form of certus decided; certain ) + -ficāre -fy

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Word History and Origins

Origin of certify1

C14: from Old French certifier, from Medieval Latin certificāre to make certain, from Latin certus certain + facere to make

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Example Sentences

In order to withhold the photographs, the secretary of defense must certify that photographs could cause harm to Americans.

The FAA will have to certify SpaceShipTwo as airworthy, but there are as yet no protocols in place for that process.

The decision to certify the planes and their sensors has been pending since late last year, long before the Ukraine crisis began.

The first is how the FAA can certify the craft as safe for passenger flight.

The folks from RecordSetter.com were there, the hosts told the hopeful twerkers, to adjudicate and certify the world record.

It will also certify that he made the pluckiest and most successful hundred-mile run ever pulled off in the Southwest.

As a rule, they certify nothing but the total absence of judgment and conscience in the people who have granted them.

I certify this fact, which, besides, formed for me a most convincing truth of the presence of a familiar spirit close about us.

Castellan and Biggen, the notaries, certify to a much larger amount in the Three per Cents.

I further certify that these memoranda accurately summarize my notes and recollections from these interviews.

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certified public accountantcertiorari