data
Americannoun
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(usually used with a singular verb) information in digital format, as encoded text or numbers, or multimedia images, audio, or video.
The data was corrupted and can’t be retrieved.
Data is entered for immediate processing by the computer.
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(used with a singular verb) a body of facts; information.
Additional data is available from the president of the firm.
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(used with a plural verb) individual facts, statistics, or items of information.
These data represent the results of our analyses.
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a plural of datum.
plural noun
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a series of observations, measurements, or facts; information
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Also called: information. computing the information operated on by a computer program
Usage
Data is a plural of datum, which is originally a Latin noun meaning “something given.” Today, data is used in English both as a plural noun meaning “facts or pieces of information” ( These data are described more fully elsewhere ) and as a singular mass noun meaning “information” ( Not much data is available on flood control in Brazil ). It is usually treated as a plural in scientific and academic writing. In the digital or computer sense it is almost always treated as a mass noun and used with a singular verb. In other types of writing it is either singular or plural. The Latinate singular datum meaning “a piece of information” is now rare in all types of writing. In surveying and civil engineering, where datum has specialized senses, the plural form is datums.
Although now often used as a singular noun, data is properly a plural
Other Word Forms
Etymology
Origin of data
First recorded in 1640–50; from Latin, plural of datum ( def. )
Explanation
Data is information such as facts and numbers used to analyze something or make decisions. Computer data is information in a form that can be processed by a computer. Data is the plural of Latin datum, "something given." In scientific use, the word data is often considered to be a plural noun meaning "pieces of information": The data are reliable. But most people think of data as a mass noun meaning "information" and use the word with a singular verb and pronoun: The data is reliable because it was tested by experts.
Vocabulary lists containing data
The SAT: Language of the Test, List 1
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TEKS ELAR Academic Vocabulary List (5th-7th grades)
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Language Gone Wrong: Words That Started Out as Errors
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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.
"It cannot be ruled out that personal or other non-public data may also be affected," the mayor's office said in a statement on Friday.
From BBC ● Aug. 28, 2026
Lindsay Ellis and Amrith Ramkumar report for the Journal on the data center debate:
From The Wall Street Journal ● Aug. 28, 2026
That’s “probably one of the higher values” recorded there, but meteorologists don’t have a long period of registered climate data for that area so it’s hard to say, he added.
From Los Angeles Times ● Aug. 28, 2026
Among people ages 18 to 34 who are not homeowners, 29% expect to buy a house within five years, down from 57% in 2015, according to Gallup’s polling data.
From MarketWatch ● Aug. 28, 2026
Inside was his data, the analysis from yesterday.
From "Boy 2.0" by Tracey Baptiste
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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.