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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:

Ada recognised her friend in a photograph posted on X by then US by then Department of Homeland Security spokeswoman Tricia McLaughlin.

From Barron's Jul. 7, 2026

Pulitzer winner Ada Ferrer’s of-the-moment new memoir, “Keeper of My Kin,” examines the agonizing personal costs of the Cuban exile and the families left fractured in its wake.

From Los Angeles Times Jun. 1, 2026

Lindsey Heaps had her seventh-minute opener disallowed by referee Maria Sole Ferrieri Caputi, who believed Ingrid Engen and Ada Hegerberg were in an offside position in front of Arsenal keeper Daphne van Domselaar.

From BBC May 2, 2026

Despite reportedly running 400,000 simulations a day based on Clinton’s race against Donald Trump, and churning out detailed reports on how to reach voters, Ada and the former secretary of state’s campaign were ultimately unsuccessful.

From Salon Apr. 13, 2026

Trying to understand why I cried ten minutes after Lucas told me Ada was at Russell’s but never shed a tear when my cousin dropped dead.

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

So I went to ADA and I got half a million dollars, which is actually a modest amount.

From Los Angeles Times Dec. 4, 2025

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

From Chicago's Awful Theater Horror by Various

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

When the A.D.A. was enacted 32 years ago, only 6 percent of Chicago’s rail stations were compliant.

From New York Times Jul. 26, 2022

“Dole was our linchpin to the Republicans,” said former Senator Tom Harkin, a Democrat from Iowa and one of the lawmakers who introduced the A.D.A.

From New York Times Dec. 9, 2021

Without Mr. Dole, several advocates said, it was possible the A.D.A. never would have passed.

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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