# accuracy

Pronunciation: US say "AK-yur-uh-see" /ˈæk.jɚ.ə.si/; UK say "AK-yuu-ruh-see" /ˈak.jʊ.ɹə.si/

## Noun

1. The state of being correct and free from error; exactness and correctness.
   - Simple: Being correct and free from mistakes.
   - _Historians prize the accuracy of firsthand accounts above later retellings._
   - _The translator was admired for her speed and her accuracy._
2. Exact conformity to truth, or to a rule or model; the degree to which a measurement matches a true or standard value.
   - Simple: How closely a measurement matches the true or correct value.
   - _Regular calibration improves the accuracy of laboratory instruments._
   - _The survey's accuracy depended on careful measurement of every boundary line._

## Origin

First attested in the 1660s, formed from "accurate" plus the suffix "-cy".

Source: DictionaryAI, https://dictionaryai.com/define/accuracy (written from Wiktionary data, CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/).