con·​firm | \ kən-ˈfərm How to pronounce confirm (audio) \
confirmed; confirming; confirms

Definition of confirm

transitive verb

1 : to give approval to : ratify confirm a treaty
2 : to make firm or firmer : strengthen confirm one's resolve
3 : to administer the rite of confirmation to
4 : to give new assurance of the validity of : remove doubt about by authoritative act or indisputable fact confirm a rumor confirm an order

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Other Words from confirm

confirmability \ kən-​ˌfər-​mə-​ˈbi-​lə-​tē How to pronounce confirmability (audio) \ noun
confirmable \ kən-​ˈfər-​mə-​bəl How to pronounce confirmable (audio) \ adjective

Choose the Right Synonym for confirm

confirm, corroborate, substantiate, verify, authenticate, validate mean to attest to the truth or validity of something. confirm implies the removing of doubts by an authoritative statement or indisputable fact. confirmed the reports corroborate suggests the strengthening of what is already partly established. witnesses corroborated his story substantiate implies the offering of evidence that sustains the contention. the claims have yet to be substantiated verify implies the establishing of correspondence of actual facts or details with those proposed or guessed at. all statements of fact in the article have been verified authenticate implies establishing genuineness by adducing legal or official documents or expert opinion. handwriting experts authenticated the diaries validate implies establishing validity by authoritative affirmation or by factual proof. validated the hypothesis by experiments

Examples of confirm in a Sentence

The tests confirmed the doctors' suspicions of cancer. The attack confirmed her worst fears about the neighborhood. The award confirmed her status as one of the great movie actresses. The dentist's office called to confirm your appointment for tomorrow. We have a reservation for you for tomorrow night. Please call to confirm.
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Recent Examples on the Web And while nothing has been confirmed, new reporting alleges that the pair have been dating for quite some time. Lauren Rearick, Teen Vogue, "Zendaya and Jacob Elordi Have Possibly Been Dating for "Months"," 6 Feb. 2020 Plus, Natalie is confirmed to be releasing a new album soon following her new record deal announced last summer, which means that being on The Masked Singer would definitely be good promo. Hannah Jeon, Good Housekeeping, "Who Is the Kangaroo on 'The Masked Singer'? Here Are the Internet's Top Theories," 5 Feb. 2020 The pair was reportedly seen kissing each other at a Comic-Con party back in July, but nothing was ever confirmed. Carolyn Twersky, Seventeen, "KJ Apa Just Posted An Instagram Pic Kissing Model Clara Berry and I Need Answers," 4 Feb. 2020 As the ball was snapped, the defense’s suspicions were confirmed: The entire offensive line took a step toward the right side of the field, in the coordinated fashion described above. John Hirschauer, National Review, "Kyle Shanahan’s Revolution," 2 Feb. 2020 But now, Elon Musk's girlfriend has confirmed the status of her pregnancy in an intimate social media post. Amy Mackelden, Harper's BAZAAR, "Grimes Confirms Her Pregnancy, and Says She Was "Woefully Ill-Prepared"," 1 Feb. 2020 The 2020 lineup at Clearview Center in Jefferson Parish is still TBD, but five different krewes are confirmed for exclusive parades throughout Valentine’s Day weekend. Andrew Parks, Condé Nast Traveler, "Everything You Need to Know about Mardi Gras in New Orleans This Year," 31 Jan. 2020 As The Economist went to press, the World Health Organisation (WHO) and China had confirmed almost 7,800 infections and 170 deaths, almost all in China. The Economist, "Prepare for the worst How do you contain a global epidemic such as coronavirus?," 30 Jan. 2020 Also, the first cases from the outbreak have been confirmed in the Middle East. National Geographic, "Can the Super Bowl go green?," 29 Jan. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'confirm.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of confirm

13th century, in the meaning defined at sense 1

History and Etymology for confirm

Middle English, from Anglo-French cunfermer, from Latin confirmare, from com- + firmare to make firm, from firmus firm

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Time Traveler for confirm

Time Traveler

The first known use of confirm was in the 13th century

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Statistics for confirm

Last Updated

12 Feb 2020

Cite this Entry

“Confirm.” Dictionary, Merriam-Webster, Accessed 17 Feb. 2020.

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More Definitions for confirm


How to pronounce confirm (audio)

English Language Learners Definition of confirm

: to state or show that (something) is true or correct
: to tell someone that something has definitely happened or is going to happen : to make (something) definite or official
formal : to make (something) stronger or more certain : to cause (someone) to believe (something) more strongly


con·​firm | \ kən-ˈfərm How to pronounce confirm (audio) \
confirmed; confirming

Kids Definition of confirm

1 : to make sure of the truth of Their arrest confirms my suspicion.
2 : to make firm or firmer (as in a habit, in faith, or in intention) : strengthen The job at the shelter confirmed her intention to become a veterinarian.
3 : approve sense 2, accept Senators confirmed the treaty.
4 : to perform a ceremony admitting a person into a church or synagogue

Legal Definition of confirm

1a : to make valid by necessary formal approval the debtor's chapter 13 plan confirmed by the court
b : to vote approval of confirm a nomination
2 : to give formal acknowledgment of receipt of
3 : to remove doubt about by authoritative act or indisputable fact a consent decree confirming Capt. Brown's right to his cargo— W. G. Young

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More from Merriam-Webster on confirm

Thesaurus: All synonyms and antonyms for confirm

Rhyming Dictionary: Words that rhyme with confirm

Spanish Central: Translation of confirm

Nglish: Translation of confirm for Spanish Speakers

Britannica English: Translation of confirm for Arabic Speakers

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