noun
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a systematized collection of data that can be accessed immediately and manipulated by a data-processing system for a specific purpose
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informal any large store of information
a database of knowledge
Etymology
Origin of database
Explanation
A database is an organized body of information. Libraries have lots of databases to help you find books, articles, or information. Looking for some information? You might need to check a database, probably at the library or online. A database collects a bunch of information and resources, usually on a common subject. Some databases feature newspapers; others are related to legal issues. The police use databases to track criminals, and the government uses databases to track terrorists. Anywhere there's information being collected and accessed, there's probably a database keeping track of it all.
Vocabulary lists containing database
Computer Science and Technology - Introductory
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Computer Science and Technology - Middle School
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Computer Science and Technology - High School
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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.
They were later removed from that database, the complaint said.
From MarketWatch • Jun. 5, 2026
The number of behavior technicians who registered in a federal database of healthcare providers surged to about 535,000 people at the end of 2025, up 457% from 2019, an analysis by the Journal found.
From The Wall Street Journal • Jun. 3, 2026
The proxy statements warn that Palantir’s software is linked to Israel’s surveillance of Palestinians, ICE’s deportation and surveillance practices, and the reported creation of a U.S. multiagency database merging Americans’ data, among other projects.
From Barron's • Jun. 3, 2026
When AI engineer Malcolm was working at a data analysis firm, executives wanted to use generative AI to categorise the customer database into a range of personas.
From BBC • Jun. 1, 2026
The largest section of the database appeared to be devoted to information on Halliday.
From "Ready Player One: A Novel" by Ernest Cline
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.
