accuracy

noun

ac·​cu·​ra·​cy ˈa-kyə-rə-sē 

ˈa-k(ə-)rə-

plural accuracies

1

: freedom from mistake or error : correctness

checked the novel for historical accuracy

2

a

: 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

Synonyms of accuracy

• precision
• preciseness
• perfection

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.

Recent Examples on the Web

Using Hawk-Eye technology, 12 cameras measure whether a pitch crosses the strike zone with accuracy of about one-sixth of an inch. —Joe Reedy, Chicago Tribune, 27 Mar. 2026

As Pivetta searched for his accuracy in the first inning, neither the former reliever Stammen nor pitching coach Ruben Niebla had success in getting the righty on track. —Tom Krasovic, San Diego Union-Tribune, 27 Mar. 2026

Danny Werfel, the former IRS commissioner from 2023 to 2025, told CBS News that ChatGPT and similar AIs are not specific to the realm of taxes and haven't been tested for accuracy. —Megan Cerullo, CBS News, 27 Mar. 2026

The spokesperson did not immediately respond when asked how often the city vets its provider network for accuracy. —Matthew Adams, Fort Worth Star-Telegram, 27 Mar. 2026

Word History

Etymology

accur(ate) + -acy

First Known Use

1644, in the meaning defined at sense 1

Rhymes for accuracy

• inaccuracy

Kids Definition

accuracy

noun

ac·​cu·​ra·​cy ˈak-yə-rə-sē 

plural accuracies

1

: freedom from error : correctness

2

: conformity to a standard : exactness