Accuracy

Definition

Accuracy refers to the quality or state of being correct or precise. It describes the degree to which a measurement, calculation, or statement conforms to the actual value or truth.

Parts of Speech

• Noun

Pronunciation

American English

• IPA Pronunciation: /ˈækjərəsi/
• Respelling: AK-yuh-ruh-see

British English

• IPA Pronunciation: /ˈækjərəsi/
• Respelling: AK-yuh-ruh-see

The pronunciation of "accuracy" is the same in both American and British English.

Etymology

The word "accuracy" originates from the Latin "accuratia," meaning "careful" or "precise." It stems from "accuratus," the past participle of "accurare" (to take care of). The term entered English in the 17th century, maintaining its meaning of exactness or correctness.

Derivatives

• Accurate (adjective)
• Accurately (adverb)
• Inaccuracy (noun)
• Accurate-to (adjective phrase)
• Unaccuracy (noun, rare)

Synonyms

• Correctness
• Precision
• Exactness

Antonyms

• Inaccuracy
• Error
• Incorrectness

Usage

The term "accuracy" is used widely in fields such as science, engineering, and data analysis, where precision and correct measurements are essential. It can also apply to language and communication, where accuracy implies using words and information in a precise manner. In technology, accuracy is often discussed in the context of sensors, measurements, and data outputs, as high accuracy is essential in critical applications like medical testing, navigation, and financial forecasting.

Related Terms

• Precision: The quality of being exact and careful.
• Validity: The quality of being logically or factually sound.
• Reliability: The consistency of a measurement or process.

Detailed Definitions

Noun

• The quality of being correct or exact: Refers to the degree to which a measurement or statement reflects the true value or fact.
  • Example: "The accuracy of the clock was tested to ensure it kept perfect time."
• Conformity to a standard or true value: Describes how well a result or measurement aligns with an accepted standard or known value.
  • Example: "The lab equipment must maintain a high level of accuracy."