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

Evaluation score debates haunt the AI industry The question of benchmark accuracy has come up multiple times in the past. — Emily Forlini, Fortune, 5 Sep. 2026

The high resolution scan creates a virtual 3D model of the site with an accuracy range of less than 2 centimeters, and involves walking around the archaeological site with an instrument called a LiDAR scanner. — Margherita Bassi, Popular Science, 3 Sep. 2026

All content was reviewed for accuracy and adherence to ethical standards. — Gabby Sartori, USA Today, 3 Sep. 2026

Robinson’s lawyers have attempted to undermine several of the exhibits offered by the prosecution, including questioning the accuracy of DNA and its ability to link suspects to crime weapons, which could be a key part of their argument in the trial. — Jack Birle, The Washington Examiner, 2 Sep. 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