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.
Ada, 36, is strolling on the beach, unfazed by the wail of air alert sirens mingling with the squawking of seagulls.
From BBC • Jan. 16, 2026
Among them are people like Ada Hernandez, who owned a 1950s home on Mountain View Street with her husband, Miguel, where they lived with their 5-year-old son, Mason, 2-year-old Sadie and 14-year-old dog Bentley.
From Los Angeles Times • Jan. 7, 2026
Lyon made it three wins from three with a 3-1 victory over Wolfsburg, star Norwegian striker Ada Hegerberg netting twice in the first half before Wendie Renard claimed a third from the penalty spot.
From Barron's • Nov. 11, 2025
At the same time, Ada Hu, another marketing professional, said the McDonald’s Monopoly game isn’t just your typical restaurant-chain promotion.
From MarketWatch • Oct. 11, 2025
“We need to check out the portrait of Ada Marie Perkins.”
From "The Parker Inheritance" by Varian Johnson
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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.