dataset

noun

da·​ta·​set ˈdā-tə-ˌset 

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

These models, called foundation or frontier models, are any AI model that is trained on extremely large and varied datasets and that can be adapted to a wide range of tasks without additional training. —Anjana Susarla, The Conversation, 12 Dec. 2025

Meanwhile, early research on AI adoption suggests that entry-level hiring in technology and information services is already being reshaped, a development Zandi believes may be understated in traditional datasets but is nonetheless starting to influence the distribution of job opportunities. —Eva Roytburg, Fortune, 9 Dec. 2025

Instead of collecting massive datasets, the researchers built a mathematical model of pressing behavior. —Bojan Stojkovski, Interesting Engineering, 6 Dec. 2025

But if future data show the hierarchy is inverted, Patterson says the current dataset already hints that neutrinos may violate CP symmetry. —Sharmila Kuthunur, Space.com, 4 Dec. 2025

Word History

First Known Use

1958, in the meaning defined above

Rhymes for dataset

• alphabet
• arpanet
• bayonet
• biuret
• cigarette
• clarinet
• coronet
• coverlet
• epithet
• ethernet
• heavyset
• internet