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• AI
  AI

  noun

  artificial intelligence:
• ai
  ai

  noun

  a three-toed sloth, Bradypus tridactylus, inhabiting forests of southern Venezuela, the Guianas, and northern Brazil, having a diet apparently restricted to the leaves of the trumpet-tree, and sounding a high-pitched cry when disturbed.

AI

¹ American  

[ey-ahy] / ˈeɪˈaɪ /

Or A.I.

noun

1. artificial intelligence:

   1. the ability of a computer, robot, programmed device, or software application to perform operations and tasks analogous to human learning and decision making, such as recognizing speech and answering questions.

      The researchers used AI to detect patterns in patients' health data.

   2. a computer, robot, programmed device, or software application able to perform operations and tasks analogous to human learning and decision making, such as recognizing speech and answering questions.

      Help train an AI in London that needs your help in understanding the world.

   3. the branch of computer science involved with the design of computers, robots, programmed devices, and software applications able to perform operations and tasks analogous to human learning and decision making.

      Many of our students have gone on to produce important, high-profile research in AI.

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adjective

1. relating to or produced with the aid of a computer, robot, programmed device, or software application able to perform operations and tasks analogous to human learning and decision making.

   Growing demand for AI engineers requires more training programs.

   Fully integrating AI output into our work poses numerous challenges, despite the labor it promises to eventually save.

AI ² American  

Or A.I.

abbreviation

1. Amnesty International.

2. army intelligence.

3. artificial insemination.

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ai ³ American  

[ah-ee] / ˈɑ i /

noun

• ais
  plural

1. a three-toed sloth, Bradypus tridactylus, inhabiting forests of southern Venezuela, the Guianas, and northern Brazil, having a diet apparently restricted to the leaves of the trumpet-tree, and sounding a high-pitched cry when disturbed.

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ai ⁴ American  

[ahy] / aɪ /

interjection

1. (used as an utterance of pity, pain, anguish, etc.)

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ai ¹ British  

/ ˈɑːɪ /

noun

1. the three-toed sloth See sloth

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ai ² British  

abbreviation

1. Anguilla

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AI ³ British  

abbreviation

1. artificial insemination

2. artificial intelligence

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AI Scientific  

1. Abbreviation of artificial insemination

2. Abbreviation of artificial intelligence

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Other Word Forms

Noun Inflected Forms

• ais
  plural

Etymology

Origin of AI¹

First recorded in 1960–65

Origin of ai³

First recorded in 1685–95; from Portuguese aí, from Tupi a'í, probably of imitative origin

Example Sentences

See Examples For:

AI ai ais

By late July, the chatter had changed—Aschenbrenner was facing steep losses from tumbling AI stocks, and he was desperate for a way out of his investments, according to people familiar with the situation.

From The Wall Street Journal ● Aug. 17, 2026

Additionally, Nvidia will invest $1.5 billion into SB Energy, though the company preemptively pushed back on critiques about so-called circular financing, which has fueled fears about an AI bubble that will eventually burst.

From Barron's ● Aug. 17, 2026

“In a world where every other asset has become correlated to AI in ways that investors may not fully appreciate, it is harder to diversify,” Emanuel said.

From MarketWatch ● Aug. 17, 2026

Situational also purchased “flex options,” a customized derivative, to amplify its AI trade.

From The Wall Street Journal ● Aug. 17, 2026

“Halliday programmed old King Acererak with some pretty wicked AI, didn’t he? He’s insanely hard to beat.”

From "Ready Player One: A Novel" by Ernest Cline

Noah Goodman is a professor of psychology and computer science at Stanford University and co-founder of the startup humans& ai.

From The Wall Street Journal ● Jan. 15, 2026

“Short replies that are insufficient, more obnoxious ai stylized talking, less ‘personality’ … and we don’t have the option to just use other models.”

From Los Angeles Times ● Aug. 20, 2025

"I feel sad, I miss an ai," one user posted.

From Salon ● Feb. 24, 2023

For example, a1 + a2 + a3 + a4 + a5 can be written as ∑ ai.

From Textbooks ● May 6, 2020

The Italian vowels a and i have always the same sound, but e has two different ones: the first like the ai in pain; the other like ea in tear, wear, or swear.

From Harper's New Monthly Magazine No. XVI.?September, 1851?Vol. III. by Various

When Andrew Carnegie put up the first $1,000,000 to start a school in Pittsburgh, ais objective was on the modest side.

From Time Magazine Archive

Just as I was about to take a delicious forkful of egg, Major Mar ais said, “No, Mandela, that is against the orders of your physician,” and he reached over to take the tray.

From "Long Walk to Freedom" by Nelson Mandela

To settle his undecided mind, you repeat: "Je serais," and you may lay great emphasis on ais, bleating for thirty seconds like a sheep in distress.

From John Bull, Junior or French as She is Traduced by Max O'Rell

"Miss Lange, Anne," he said, "let us go together to Lar—and be happy there—happy as two ais, or three-toed South American sloths."

From Of All Things by Robert C. Benchley

At times was heard a kind of long, plaintive cry, that Harris attributed to some of those large tardi-grades, habitual denizens of those vast wooded regions, named "ais."

From Dick Sand A Captain at Fifteen by Jules Verne

Related Words

• robotics