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

Frequently cited pitfalls of AI, including accuracy issues, have significantly improved over earlier iterations of platforms such as Anthropic’s Claude or OpenAI. — S. Sorrina Beecher, Chicago Tribune, 13 Nov. 2026

Success should be measured by resolution times, accuracy, customer satisfaction, employee productivity and reliability, not by how much software gets replaced. — Steve Dawson, Forbes.com, 12 Nov. 2026

Google also highlights improvements in tool use, coding accuracy, and its ability to recover when a tool call fails or a search returns no results. — Neetika Walter, Interesting Engineering, 12 Nov. 2026

Meta's November 9 announcement did not provide a new accuracy figure for the worldwide expansion. — Kurt Knutsson, FOXNews.com, 11 Nov. 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