dataset

noun

da·​ta·​set ˈdā-tə-ˌset How to pronounce dataset (audio)
ˈda-
also ˈdä-
variants or less commonly data set
plural datasets also data sets
: a collection of data taken from a single source or intended for a single project
analyzed the dataset
If you're using a public dataset, make sure the data comes from a reliable source …Ben Dickson
The company is also … continuing to build its own dataset to improve its machine learning models.Alexandra S. Levine
Since AIs need a data set to learn and recognize patterns, one major worry artists have is that their artwork is being used for AI learning, raising concerns of copyright infringement.Daniel Salcedo Rubio

Examples of dataset in a Sentence

Recent Examples on the Web
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To find them, scientists developed advanced computational methods that sift through massive datasets, using algorithms to scan millions of faint light sources and test billions of possible motion paths to pinpoint the slow, subtle movements of these distant worlds. Samantha Mathewson, Space.com, 5 Apr. 2026 This dataset gives a way to cross-check whether agents are targeting people with no criminal record. Ignacio Calderon, USA Today, 3 Apr. 2026 According to unconfirmed reports circulating online, datasets used by some of Mercor’s customers and information about those customers’ secretive AI projects may have been compromised in the breach. Beatrice Nolan, Fortune, 2 Apr. 2026 Over time, this creates a distinct behavioral dataset for each animal, allowing owners to track trends and detect anomalies on a per-cat basis. New Atlas, 1 Apr. 2026 See All Example Sentences for dataset

Word History

First Known Use

1958, in the meaning defined above

Time Traveler
The first known use of dataset was in 1958

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Cite this Entry

“Dataset.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dataset. Accessed 6 Apr. 2026.

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