proof
noun
evidence sufficient to establish a thing as true, or to produce belief in its truth.
proofs
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pluralof proof.plural
The grammatical form denoting more than one person, place, thing, or idea.
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present tense formof proof (3rd person singular).present tense
Used to describe things happening now or regularly.
proofnounevidence sufficient to establish a thing as true, or to produce belief in its truth.
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.
"To be clear, we did not use their prompts or proofs to prompt our models or direct our agents," Bubeck said.
From Barron's ● Sep. 8, 2026
"However, our proofs differ significantly and even the precise results proved are different."
From BBC ● Sep. 8, 2026
The field is governed by precise logical rules, which allow proofs to be checked step by step.
From The Wall Street Journal ● Aug. 8, 2026
During its long history, the Jacobian conjecture has been the subject of many claimed proofs, including by Beniamino Segre and Wolfgang Gröbner, two famed 20th-century mathematicians.
From Science Daily ● Aug. 6, 2026
Technical proofs have to be constructed by the advocate.
From "The Invention of Science" by David Wootton
