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

The team is now working to extend the technology to true three-dimensional printing while retaining its speed and accuracy. — Neetika Walter, Interesting Engineering, 10 July 2026

Your brand in that moment is the quality of your product data, the accuracy of your descriptions and the consistency of your pricing. — Firdosh Tangri, Forbes.com, 10 July 2026

Those grants are then used to protect IT systems from foreign and domestic cyberattacks, update voting systems, ensure the accuracy of voter rolls and protect the integrity of ballots after they are cast. — Kevin Rector, Los Angeles Times, 10 July 2026

But even such precise positioning was not enough to achieve the accuracy the team wanted. — Jacek Krywko, ArsTechnica, 10 July 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