Did you know?

Click any word in a definition or example to find the entry for that word

confirm - definition and synonyms


What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.



The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

verb confirm pronunciation in American English /kənˈfɜrm/
Word Forms
present tense
present participleconfirming
past tenseconfirmed
past participleconfirmed
  • Facebook
  • Twitter
  1. 1
    [transitive] to prove that something is true
    The study confirms the findings of earlier research.
    Please bring something with you that confirms your identity.
    confirm (that): The doctor may run a test to confirm that you are pregnant.
    1. a.
      to make you feel sure that an idea or belief is right or true
      confirm someone’s suspicions: Their strange behavior was enough to confirm my suspicions.
      confirm someone’s fears: When she saw the letter her worst fears were confirmed.
      confirm someone in their belief/view/determination etc.: His words confirmed me in my belief that our cause was right.
    2. b.
      to say that something is definitely true because you know about it
      We cannot confirm the number of jobs that will be lost.
      confirm that: The principal confirmed that two pupils had been expelled.
  2. 2
    [intransitive/transitive] to tell someone, usually by writing or telephoning, that something will definitely happen at the time or in the way that has been arranged
    You can make an appointment now, and then call nearer the time to confirm.
    The date of the meeting is still to be confirmed.
  3. 3
    [transitive] to formally support something and allow it to happen
    The parliament’s decision still has to be confirmed in a referendum.
    1. a.
      to formally accept someone new in an important position
      Nigel Hill was yesterday confirmed as the new chief executive.


a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

BuzzWord Article

Open Dictionary


an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

add a word


A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog