accuracy
Americannoun
plural
accuracies-
the condition or quality of being true, correct, or exact; freedom from error or defect; precision or exactness; correctness.
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Chemistry, Physics. the extent to which a given measurement agrees with the standard value for that measurement.
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Mathematics. the degree of correctness of a quantity, expression, etc.
noun
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faithful measurement or representation of the truth; correctness; precision
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physics chem the degree of agreement between a measured or computed value of a physical quantity and the standard or accepted value for that quantity
Other Word Forms
- hyperaccuracy noun
Etymology
Origin of accuracy
First recorded in 1655–65; accur(ate) + -acy
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A Harvard spokesperson questioned the survey’s methodology and accuracy because it may have allowed duplicate submissions.
From The Wall Street Journal • Apr. 3, 2026
The compression algorithm reduced “key value memory size” in artificial-intelligence models by at least six times and lifted speeds up to eightfold, without compromising model accuracy, Google researchers said.
From Barron's • Apr. 2, 2026
Roughly 9 in 10 students also said they they believe it’s “necessary” for a human to check AI-produced content for accuracy.
From Los Angeles Times • Apr. 1, 2026
These unwanted fluctuations interfere with signals and limit accuracy.
From Science Daily • Mar. 31, 2026
He periodically checked their accuracy by taking a kind of astronomical reading called an occultation.
From "Shipwreck at the Bottom of the World" by Jennifer Armstrong
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
