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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

That's because of rapidly changing economics around tokens, the building blocks of LLMs and agentic AI.

From BBC ● Aug. 3, 2026

Much of AI adoption thus far has involved migrating a company’s “proprietary way of doing things, their alpha, into the lab models, and that’s where the negative sentiment is in an enterprise,” Karp said.

From MarketWatch ● Aug. 3, 2026

But companies, and individuals, using AI systems often have a tenuous grasp on just how many tokens they are burning through – until they either run out or get their monthly bill.

From BBC ● Aug. 3, 2026

Read: How much should an AI agent cost?

From MarketWatch ● Aug. 3, 2026

Now more than ever she could have used the Thunderhead’s AI guidance as she browsed through its data files, because the worldwide public camera system seemed designed to thwart her efforts.

From "Scythe" by Neal Shusterman

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

The menu at Trattoria Cammillo, a block south of the Arno River near the Ponte Santa Trinita, listed the dish as “tagliatelle fatte in casa ai funghi porcini freschi.”

From Washington Post ● Mar. 5, 2023

A vector v = ai + bj is written in terms of magnitude and direction as See Example 13.

From Textbooks ● Feb. 13, 2015

If ai is different from e, then again and agen cannot be the same word, and if i and e are neither identical nor equivalent, nither and neether are two different words.

From Lippincott's Magazine of Popular Literature and Science, Volume 26, July 1880. 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

Next time you dictate a word ending in ais, he won't be caught again.

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

Mi ais an dlims, I am a servant of sin.

From Punch, or the London Charivari, Volume 99, October 11, 1890 by Various

"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 Benchley, Robert C.

Related Words

• robotics