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  • Ada
    Ada
    noun
    a programming language particularly suited to real-time applications: developed for use by the U.S. Department of Defense.
  • ADA
    ADA
    abbreviation
  • A.D.A.
    A.D.A.
    abbreviation
    American Dental Association.

Ada

1 American  
[ey-duh] / ˈeɪ də /

noun

Computers.
  1. a programming language particularly suited to real-time applications: developed for use by the U.S. Department of Defense.


Ada 2 American  
[ey-duh] / ˈeɪ də /

noun

  1. a city in central Oklahoma.

  2. Douay Bible. Adah.

  3. a first name: from a Germanic word meaning “noble.”


ADA 3 American  

abbreviation

  1. adenosine deaminase.

  2. American Dental Association. null A.D.A.

  3. American Diabetes Association. null A.D.A.

  4. Americans for Democratic Action. null A.D.A.

  5. 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.


A.D.A. 4 American  
Or ADA

abbreviation

  1. American Dental Association.

  2. American Diabetes Association.

  3. Americans for Democratic Action.


Ada British  
/ ˈeɪdə /

noun

  1. a high-level computer programming language designed for dealing with real-time processing problems: used for military and other systems

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

See Examples For:

"He got married, had four beautiful little girls. He talks out against gang violence" that got him caught up in the criminal justice system, Ada said.

From Barron's Jul. 7, 2026

Ada Ferrer is one of the country’s leading historians of Cuba and her timely memoir, “Keeper of My Kin,” arrives at a moment of renewed urgency for Cuba.

From Los Angeles Times May 19, 2026

Founded in Bologna in 1954 by an Italian corsetry maker named Ada Masotti, La Perla’s lingerie became high fashion.

From The Wall Street Journal Apr. 18, 2026

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

Also, I wanted to get one last look at Ada Taylor before she graduated and never came back to Lily again.

From "Where Things Come Back" by John Corey Whaley

Results from that study were also presented at the ADA meeting and published in The Lancet Diabetes and Endocrinology.

From Science Daily Jun. 15, 2026

Currently, the law subsidizes 83 ADA positions for Orleans Parish.

From Slate May 5, 2026

A full dataset will be released at ADA Scientific Sessions in early June, which will provide a more in-depth evaluation of the results.

From The Wall Street Journal Apr. 28, 2026

“The thing that makes it a workhorse for urban forests,” says Vejar, “is also what makes cities have to pay out millions in lawsuits from people tripping, ADA violations and such.”

From Los Angeles Times Aug. 10, 2025

SIMPSON, ADA, 40 years old, visiting at 537 West Sixty-fifth street, Denver.

From Chicago's Awful Theater Horror by Various

“It is for this reason that the A.D.A. is enforced by only a small handful of plaintiff advocates.”

From New York Times Mar. 27, 2023

Then she revised that statement: “Well, it shouldn’t take two years. But what worked well was that they closed the street first and then they made those updates,” such as adding more A.D.A. parking spaces.

From Slate Nov. 11, 2022

Mr. Buttigieg said there were about 900 stations across the country that were not A.D.A. compliant.

From New York Times Jul. 26, 2022

Because of his injuries, Mr. Dole instinctively understood the issues faced by other disabled individuals, according to Tony Coelho, the former House Democratic whip from California who was the primary author of the A.D.A.

From New York Times Dec. 9, 2021

He told the jury, in so many words, to pay no attention to either the A.D.A. or to Mr. Tutt, and to listen only to him, because he was the whole thing.

From By Advice of Counsel by Train, Arthur Cheney

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