noun, plural ac·cu·ra·cies.

the condition or quality of being true, correct, or exact; freedom from error or defect; precision or exactness; correctness.
Chemistry, Physics. the extent to which a given measurement agrees with the standard value for that measurement.Compare precision(def 6).
Mathematics. the degree of correctness of a quantity, expression, etc.Compare precision(def 5).

Origin of accuracy

First recorded in 1655–65; accur(ate) + -acy
Related formshy·per·ac·cu·ra·cy, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for accuracy

Contemporary Examples of accuracy

Historical Examples of accuracy

  • With the accuracy of his nation, he beamingly replied, "Seeshundredtousand."


    Thomas Wentworth Higginson

  • It was simply impossible to judge with any accuracy of the distance of the ship.


    Thomas Wentworth Higginson

  • Everything combines to prove the accuracy of my observations.

    The Lamplighter

    Charles Dickens

  • Accuracy in speaking and writing had, indeed, been early impressed upon her.

  • For one thing, he must be able to estimate distance with some degree of accuracy.

    The Leopard Woman

    Stewart Edward White

British Dictionary definitions for accuracy


noun plural -cies

faithful measurement or representation of the truth; correctness; precision
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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for accuracy

1660s, from accurate + -cy.

Online Etymology Dictionary, © 2010 Douglas Harper