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

Poor data quality—characterized by unstructured formats, low accuracy and insufficient meta-tagging—remains a widespread issue. —Aj Bubb, Forbes, 21 Feb. 2025

According to its announcement, Gaia’s systems can finish that task in 30 seconds with 92 percent accuracy. —Meghan Hall, Sourcing Journal, 21 Feb. 2025

Rocket Trucks are highly mobile artillery pieces that can blanket an entire area with fire, though with very low accuracy. —Tom Rogers, Newsweek, 21 Feb. 2025

Bless also integrates adaptive verification methods, such as weighted averages for data retrieval and consensus mechanisms for complex tasks, ensuring accuracy, reliability, and seamless execution across a diverse computing network. —Tyler Shepherd, USA TODAY, 21 Feb. 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