Ada
1 Americannoun
noun
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a city in central Oklahoma.
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Douay Bible. Adah.
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a first name: from a Germanic word meaning “noble.”
abbreviation
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American Dental Association. null A.D.A.
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American Diabetes Association. null A.D.A.
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Americans for Democratic Action. null A.D.A.
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Americans with Disabilities Act: a federal law prohibiting discrimination against people with physical or mental impairments and guaranteeing access to employment opportunities and access to state and local government programs and services, signed by President George H. W. Bush in 1990.
abbreviation
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American Dental Association.
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American Diabetes Association.
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Americans for Democratic Action.
noun
Etymology
Origin of Ada
Named after Augusta Ada (Byron), Countess of Lovelace (1815–37), English mathematician, who assisted Charles Babbage in developing a precursor of the modern computer
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.
In 2016, Hillary Clinton’s presidential campaign, taking inspiration and personnel from Barack Obama’s two election wins, was a data-heavy enterprise that relied on analytics — and, famously, an algorithm named Ada.
From Salon • Apr. 13, 2026
In Ada Louise Huxtable’s architecture writing, buildings whirl off their footings and built interiors entice us to dance.
From The Wall Street Journal • Mar. 24, 2026
Another award winner, Stephen Graham of Adolescence fame, returns to the cast, as well as Sophie Rundle who plays Tommy's sister Ada.
From BBC • Mar. 2, 2026
Ada Carrillo, one of the devout who crowed the basilica this week, said she unites all of Mexico, transcending political, geographic and class divides.
From Los Angeles Times • Dec. 12, 2025
If you lived in Lily, Arkansas, which we all did, then you knew Ada, or at least knew about her.
From "Where Things Come Back" by John Corey Whaley
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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.