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
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.
“I’m sure in the database they have me at 5-11 and seven-eighths.”
From The Wall Street Journal • Apr. 1, 2026
But the wave keeps building: A database of AI hallucinations maintained by the French researcher Damien Charlotin now numbers 1,174 cases, of which some 750 are from U.S. courts.
From Los Angeles Times • Mar. 27, 2026
Her family is one of 33 awaiting word from loved ones reported missing in Arizona in the past year to the US justice department's missing-persons database.
From BBC • Mar. 25, 2026
Unlike many other attempts to calculate the return on housing, this comprehensive database reflects both capital appreciation and rental income.
From MarketWatch • Mar. 20, 2026
The office kept an electronic database of every voter and potential voter we encountered, and then those that it reached through regular mailers.
From "Native Speaker" by Chang-rae Lee
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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.