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

There’s a new generation of drugs about to hit the market that didn’t originate with elegant hypotheses, but rather from brute-force analyses of massive datasets. — Reed Albergotti, semafor.com, 17 July 2026

In other states, the datasets are available from election boards or third-party vendors. — Philip Elliott, Time, 17 July 2026

In a court filing last week, the Justice Department said that CMS again inadvertently reshared with ICE the dataset with millions of names that CMS had first improperly shared with ICE in January. — Jude Joffe-Block, NPR, 17 July 2026

Active learning cuts the need for massive datasets Most AI systems need a large amount of experimental data to make accurate predictions. — Sujita Sinha, Interesting Engineering, 16 July 2026

Word History

First Known Use

1958, in the meaning defined above

Rhymes for dataset

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