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

However, multiple studies have reported its accuracy – as well as the accuracy of the competing Farmer's Almanac, established in 1818 – to be closer to 50%. —Kelli Arseneau, jsonline.com, 30 Jan. 2026

For tasks requiring maximum accuracy on high-stakes decisions, encourage Centaur behavior—selective AI use with strong human judgment. —François Candelon, Fortune, 30 Jan. 2026

Players instructed to fixate on the front of the rim before shooting improved their accuracy significantly more than players taught how to improve their arm mechanics. —Big Think, 29 Jan. 2026

However, technical accuracy isn’t the only metric worth attention. —IEEE Spectrum, 29 Jan. 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