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

• accurateness
• closeness
• delicacy
• exactitude
• exactness
• fineness
• nicety
• perfection
• preciseness
• precision
• rigor
• rigorousness
• ultraprecision
• veracity

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

Discuss Tools’ Trustworthiness Women tend to be more cautious about AI’s fairness and accuracy. —Corinne Post, Forbes.com, 23 Apr. 2025

By August 2025, the University must submit to the government a report—certified for accuracy—that confirms these reforms. —Kayla Jimenez, USA Today, 23 Apr. 2025

This already feels fresh, deeper in anthropological accuracy and concern than horror films interested in guitar music tend to dig. —Craig Jenkins, Vulture, 22 Apr. 2025

The panel itself has a 120Hz refresh rate for ultra-smooth motion and X-Rite color calibration for professional-grade color accuracy. —PC Magazine, 21 Apr. 2025

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