Ada
1 Americannoun
noun
-
a city in central Oklahoma.
-
Douay Bible. Adah.
-
a first name: from a Germanic word meaning “noble.”
abbreviation
-
American Dental Association. null A.D.A.
-
American Diabetes Association. null A.D.A.
-
Americans for Democratic Action. null A.D.A.
-
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
-
American Dental Association.
-
American Diabetes Association.
-
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
Security guard Pascal Duvier, most recently infamous for allegedly scolding 11-year-old Ada Law at a hotel in São Paulo, is clearing the air.
From Los Angeles Times • Mar. 26, 2026
The show will also star Dylan Brady, Ada Player, Harry Baxendale and Yasmine Al-Khudhairi as the students who become part of the unlikely house share.
From BBC • Mar. 25, 2026
Straightforward storytelling was never the strong suit of the show, which relied very much on Mr. Murphy’s charisma and that of his co-stars, notably Sophie Rundle, who plays sister Ada Shelby.
From The Wall Street Journal • Mar. 19, 2026
My aunt Anne in her nurse's uniform, my aunt Ada in her university sweater Buckeye to the hone .
From "Brown Girl Dreaming" by Jacqueline Woodson
![]()
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.