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accuracy

American  
[ak-yer-uh-see] / ˈæk jər ə si /

noun

  • accuracies
    plural
  1. An image of the word accuracy as defined by the condition or quality of being true, correct, or exact; freedom from error or defect; precision or exactness; correctness.

    the condition or quality of being true, correct, or exact; freedom from error or defect; precision or exactness; correctness.

  2. Chemistry, Physics. the extent to which a given measurement agrees with the standard value for that measurement.

  3. Mathematics. the degree of correctness of a quantity, expression, etc.


accuracy British  
/ ˈækjʊrəsɪ /

noun

  1. faithful measurement or representation of the truth; correctness; precision

  2. physics chem the degree of agreement between a measured or computed value of a physical quantity and the standard or accepted value for that quantity

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Nouns


Etymology

Origin of accuracy

First recorded in 1655–65; accur(ate) + -acy


Explanation

Accuracy refers to a lack of mistakes or errors. "I type very fast, but the accuracy of my typing is n't very goode." Accuracy is a must for anyone who works in a precise profession. Would you trust a surgeon who lacks accuracy to remove your appendix? His lack of precision might result in the accidental removal of your spleen. A meteorologist with questionable accuracy isn't going to be popular either, especially when it rains every time he predicts a sunny day.

Keep Reading on Vocabulary.com

Vocabulary lists containing accuracy

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.

See Examples For:

But with their capabilities supplemented by human teleoperators, Tau’s robots climbed with deliberate accuracy, albeit a little slowly.

From MarketWatch ● Oct. 16, 2026

When both were scored for accuracy by a different group of assessors who didn’t know which translation was which, neither proved to be error-free.

From Slate ● Oct. 16, 2026

By using structured financial data rather than the open web, the system improves accuracy and provides direct citations for transparency.

From The Wall Street Journal ● Oct. 15, 2026

McDonald’s says its early tests have topped 90% accuracy, with plans to expand the technology as part of a sweeping modernization initiative.

From Salon ● Oct. 11, 2026

We shall see that although the uncertainty principle places limitations on the accuracy of all our predictions, it may at the same time remove the fundamental unpredictability that occurs at a space-time singularity.

From "A Brief History of Time: And Other Essays" by Stephen Hawking

Still, though, the ALA's reliance on media accounts and reports from librarians remains a confounding variable in the numerical accuracies, as the body has previously noted.

From Salon ● Sep. 23, 2024

This outperformed other methods, both shallow and deep learning, which had accuracies below 80%.

From Science Daily ● Nov. 20, 2023

“That report was not completely accurate but there’s some accuracies in it,” said Jayna Hefford, a four-time Olympic gold medalist for Canada who is the PWHPA’s lead operations consultant.

From Los Angeles Times ● Mar. 9, 2023

Let the D.C. curriculum reflect the historical accuracies, including the murder — the Holocaust — of millions, particularly Jews, during World War II.

From Washington Post ● Feb. 19, 2023

It does not follow, with any great poet, that he is bothering much with historical or other accuracies, or sticking very closely even to tradition.

From The Crest-Wave of Evolution A Course of Lectures in History, Given to the Graduates' Class in the Raja-Yoga College, Point Loma, in the College-Year 1918-19 by Kenneth Morris

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