ac·​cu·​ra·​cy | \ ˈa-kyə-rə-sē How to pronounce accuracy (audio) , ˈa-k(ə-)rə- \
plural accuracies

Definition of accuracy

1 : freedom from mistake or error : correctness checked the novel for historical accuracy
2a : conformity to truth or to a standard or model : exactness impossible to determine with accuracy the number of casualties
b : degree of conformity of a measure to a standard or a true value — compare precision entry 1 sense 2a

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Examples of accuracy in a Sentence

Each experiment is performed twice to ensure accuracy. The police questioned the accuracy of his statement. He could not say with any accuracy what he had seen. Several managers have tried to increase the speed and accuracy of the workers.
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Recent Examples on the Web The model is fully automated and has about a 95% accuracy rate, according to Nirvaan’s group, which said the software can also detect signs of pneumonia. Teri Webster, Dallas News, "Plano teen working on COVID-19 diagnosis software earns honor from National Geographic," 3 Feb. 2021 The at-home RT-PCT test kit is the first saliva test for COVID-19 authorized by the Food and Drug Administration and is advertised as having a 99.99% accuracy rate in diagnosing the coronavirus. Anne Marie Lee, CBS News, "Company to offer COVID-19 test kits via vending machines," 1 Feb. 2021 Roberts says the tool has an accuracy rate of 93 percent. Animals, "The black-market trade in wildlife has moved online, and the deluge is 'dizzying'," 18 Dec. 2020 Mariota, who has accuracy issues with the deep pass in the past, dropped a dime to Waller. MARIOTA. oregonlive, "Watch: Marcus Mariota throws his first touchdown pass of the season for the Las Vegas Raiders," 18 Dec. 2020 Employees and supporters rallied for a Taiwanese pro-China cable news channel as it was taken off air Saturday, after the government refused to renew its license, citing accuracy issues. USA TODAY, "Leading pro-China news channel in Taiwan is taken off air citing accuracy issues," 13 Dec. 2020 To Smith’s point, though, the completion percentage belies the fact that some accuracy issues came to the surface last week against Oregon State. Josh Newman, The Salt Lake Tribune, "Utah QB Jake Bentley’s play has been uneven to this point. How much better can he get?," 11 Dec. 2020 Positives from molecular diagnostic testing are counted as confirmed, while those from rapid antigen testing are listed as probable due to a slightly lower accuracy rate. Jeremy Olson, Star Tribune, "COVID-19 positivity jumps to 9% in Minnesota — 3,483 new cases, 15 deaths," 3 Nov. 2020 His accuracy rate – nine interceptions in 289 attempts – led the league. Mike Klingaman,, "Retro Baltimore: Before Johnny Unitas, it was Y.A. Tittle who carried the Colts with his mighty arm," 14 Oct. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'accuracy.' 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 accuracy

1644, in the meaning defined at sense 1

History and Etymology for accuracy

accur(ate) + -acy

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Time Traveler for accuracy

Time Traveler

The first known use of accuracy was in 1644

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Statistics for accuracy

Last Updated

23 Feb 2021

Cite this Entry

“Accuracy.” Dictionary, Merriam-Webster, Accessed 6 Mar. 2021.

Style: MLA
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More Definitions for accuracy



English Language Learners Definition of accuracy

: freedom from mistake or error : the quality or state of being accurate
: the ability to work or perform without making mistakes


ac·​cu·​ra·​cy | \ ˈa-kyə-rə-sē How to pronounce accuracy (audio) \

Kids Definition of accuracy

: freedom from mistakes

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Comments on accuracy

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