ac·​cu·​ra·​cy | \ ˈa-kyə-rə-sē, ˈa-k(ə-)rə-\
plural accuracies

Definition of accuracy

1 : freedom from mistake or error : correctness checked the novel for historical accuracy
2a : 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

Keep scrolling for more

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.
See More

Recent Examples on the Web

Instruments on satellites have measured the force of gravity all over the Earth to an accuracy of a few feet, which has been enough for atomic clocks in the past. Avery Thompson, Popular Mechanics, "Our New Atomic Clock Is So Precise That We Need a Better Understanding of Gravity To Use It," 30 Nov. 2018 The hot plate was leveled to the accuracy of the researchers' spirit level (a precision spirit level, not a household spirit level). Chris Lee, Ars Technica, "Free-wheeling water droplets plot their own path off a hot plate," 14 Sep. 2018 Three decades later, most climate scientists interviewed rave about the accuracy of Hansen’s predictions given the technology of the time. Washington Post, "James Hansen wishes he wasn’t so right about global warming," 18 June 2018 Yu said his driving accuracy and putting have improved in college. Jeff Metcalfe, azcentral, "ASU's Chun An Yu making his U.S. Open debut after winning sectional qualifier," 13 June 2018 Democrats expressed similar concern over the accuracy of the budget analysis, or fiscal note, that said Haahr's bill would cut just under $6 million from the state's revenue collections. Allison Kite, kansascity, "Missouri General Assembly votes to cut individual taxes, sends bill to Greitens | The Kansas City Star," 17 May 2018 Precision was the key to his Mother's Day victory, having been last in the field for driving distance but first for driving accuracy. CNN, "Tiger Woods: 'I'm not that far off from winning golf tournaments'," 14 May 2018 But even with the tech to monitor a ban of underground nuclear tests, ongoing fights within the US and with Russia over the accuracy of those yield calculations delayed negotiations for a comprehensive test ban, Sykes says. Rachel Becker, The Verge, "Meet the scientists keeping a global watch for nuclear explosions," 9 May 2018 Goydos was 8 under on the par 5s and 36 for 42 in driving accuracy, both tied for fourth in the field. Richard Dean, Houston Chronicle, "The Woodlands' Jeff Maggert finishes with share of 2nd place at Insperity," 6 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'accuracy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of accuracy

1644, in the meaning defined at sense 1

History and Etymology for accuracy

accur(ate) + -acy

Keep scrolling for more

Learn More about accuracy

Statistics for accuracy

Last Updated

14 Jan 2019

Look-up Popularity

Time Traveler for accuracy

The first known use of accuracy was in 1644

See more words from the same year

Keep scrolling for more

More Definitions for accuracy



English Language Learners Definition of accuracy

: freedom from mistake or error : the quality or state of being accurate

: the ability to work or perform without making mistakes


ac·​cu·​ra·​cy | \ ˈa-kyə-rə-sē \

Kids Definition of accuracy

: freedom from mistakes

Keep scrolling for more

Comments on accuracy

What made you want to look up accuracy? Please tell us where you read or heard it (including the quote, if possible).


important, real, or meaningful

Get Word of the Day daily email!

Test Your Vocabulary

Homophone Quiz

  • three-bears-two-of-them-look-like-theyre-whispering-to-a-third-bear-who-looks-chuffed-to-be-the-center-of-attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
Spell It

Can you spell these 10 commonly misspelled words?

Add Diction

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!