ac·​cu·​ra·​cy ˈa-kyə-rə-sē How to pronounce accuracy (audio)
plural accuracies
: freedom from mistake or error : correctness
checked the novel for historical accuracy
: conformity to truth or to a standard or model : exactness
impossible to determine with accuracy the number of casualties
: degree of conformity of a measure to a standard or a true value compare precision entry 1 sense 2a

Example Sentences

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.
Recent Examples on the Web From tapping into relationship advice, laughing at hilariously relatable clips or recreating delicious recipes, the platform curates specific content with near psychic-like accuracy for its more than 1 billion users. Jasmine Browley, Essence, 22 Nov. 2022 This paradoxical wish, to reveal the darkest parts of herself with such pitiless accuracy that she will be forced to fall silent once and for all, is an extraordinary expression of writerly ambition. Alexandra Schwartz, The New Yorker, 14 Nov. 2022 The sort of outlooks Copernicus published are longer term and less certain than the much more predictable one-day or one-week forecasts provided with relative accuracy by the world’s weather services. Yusuf Khan, WSJ, 14 Nov. 2022 Ewers has had a wildly up-and-down freshman season but he's now had another bad outing in the second half of the season and is struggling badly with accuracy. Jim Vertuno, Chron, 12 Nov. 2022 Security researchers discovered that iPhone hackers could expose WhatsApp, Signal, and Threema users’ locations with an accuracy of 80%, depending on the attack’s success. José Adorno, BGR, 21 Oct. 2022 In September 2021, the team found a way to do so with an accuracy of about 7.7 meters. PCMAG, 21 Oct. 2022 One of the most cutting edge features of the Pro is its eye tracking, which lets your avatars mimic your facial expressions with uncanny accuracy. Andrew R. Chow, Time, 13 Oct. 2022 Many health insurers require that a woman be 40 years old before regular mammography screening, but Auria can signal to health care providers the need for further testing with high accuracy for women ages 33-87. April Wallace, Arkansas Online, 13 Oct. 2022 See More

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.

Word History


accur(ate) + -acy

First Known Use

1644, in the meaning defined at sense 1

Time Traveler
The first known use of accuracy was in 1644

Dictionary Entries Near accuracy

Cite this Entry

“Accuracy.” Dictionary, Merriam-Webster, Accessed 26 Nov. 2022.

Kids Definition



ac·​cu·​ra·​cy ˈak-yə-rə-sē How to pronounce accuracy (audio)
plural accuracies
: freedom from error : correctness
: conformity to a standard : exactness

More from Merriam-Webster on accuracy

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