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

Many of these models are trained on stupendously large datasets comprising material culled from online sources, from which broader statistical patterns can be extracted and discerned. —Patrick R. Crowley, Artforum, 1 Mar. 2026

Simulations replace massive data needs A major challenge in developing advanced imaging systems is the need for large training datasets. —Sujita Sinha, Interesting Engineering, 27 Feb. 2026

These superflares matched the pattern of cycles seen in the 50-year dataset that Velasco Herrera's team uses for forecasting. —Keith Cooper, Space.com, 27 Feb. 2026

These challenges centered on dataset bias, lack of algorithmic transparency and challenges with explainability, the journal said. —Sarah Lapidus, AZCentral.com, 26 Feb. 2026

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