affirm
Americanverb (used with object)
-
to state or assert positively; maintain as true.
to affirm one's loyalty to one's country; He affirmed that all was well.
- Synonyms:
- testify, depose, asseverate, aver
- Antonyms:
- deny
-
to confirm or ratify.
The appellate court affirmed the judgment of the lower court.
-
to assert solemnly.
He affirmed his innocence.
-
to express agreement with or commitment to; uphold; support.
to affirm human rights.
-
to support (someone) by giving approval, recognition, or encouragement.
She described the unhappy memory of her father, who had neither disciplined nor affirmed her.
verb (used without object)
verb
-
(may take a clause as object) to declare to be true; assert positively
-
to uphold, confirm, or ratify
-
(intr) law to make an affirmation
Synonym Usage
See declare.
Other Word Forms
Etymology
Origin of affirm
First recorded in 1300–50; from Latin affirmāre, equivalent to af- af- + firmāre “to make firm” ( see firm 1); replacing Middle English a(f)fermen, from Middle French afermer, from Latin
Explanation
To affirm something is to give it a big "YES" or to confirm that it is true. The verb affirm means to answer positively, but it has a more weighty meaning in legal circles. People are asked to swear an oath or affirm that they will tell the truth in a court of law. Lawyers may ask people to affirm facts, and judges may affirm rulings. In these cases, affirm means to verify or attest to the validity of something.
Vocabulary lists containing affirm
Speech and Debate
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"Ad Power," "Without Commercials," and "What's Wrong with Advertising"
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This Week In Culture: Current Events Vocab for October 3–9, 2020
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Negotiating some level of contribution from your stepdaughter may be beneficial both financially and psychologically, and affirm to her that she does not live a consequence-free life.
From MarketWatch • May 15, 2026
It is easier to affirm what your audience already believes than to challenge them with new arguments.
From Salon • Apr. 18, 2026
The available sources support and affirm the article’s characterization rather than present opposing arguments.
From Los Angeles Times • Apr. 5, 2026
Higher expenses will compress margins in the near term, the analysts noted, but Akamai continues to announce large compute deals that affirm its relevance in the cloud-services market.
From Barron's • Feb. 20, 2026
“Oh, he’s showing up all right,” I affirm.
From "I Am the Messenger" by Markus Zusak
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
