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cannonball

American  
[kan-uhn-bawl] / ˈkæn ənˌbɔl /

noun

  • cannonballs
    plural
  1. a missile, usually round and made of iron or steel, designed to be fired from a cannon.

  2. Tennis. a served ball that travels with great speed and describes little or no arc in flight.

  3. anything that moves with great speed, as an express train.


adjective

  1. made from a curled-up position with the arms pressing the knees against one's chest.

    a cannonball dive.

  2. moving at great speed.

    a train known as a cannonball express.

cannonball British  
/ ˈkænənˌbɔːl /

noun

  1. a projectile fired from a cannon: usually a solid round metal shot

  2. tennis

    1. a very fast low serve

    2. ( as modifier )

      a cannonball serve

  3. a jump into water by a person who has his arms tucked into the body to form a ball

"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

verb

  1. to rush along, like a cannonball

  2. to execute a cannonball jump

"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

adjective

  1. very fast or powerful

"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

Other Word Forms

Noun Inflected Forms


Etymology

Origin of cannonball

First recorded in 1655–65; cannon + ball 1


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:

After a few minutes, there was a dive off the arch, followed by a cannonball from the next person, a backflip from a third and then other more spectacular and daring stunts from the flock.

From Los Angeles Times ● Sep. 8, 2026

My line stuttered forward and flopped onto the water with all the stealth of a cannonball.

From The Wall Street Journal ● Jul. 5, 2026

Of all the dirty, rotten, down-low things Netflix has done, providing a gaping pit of gold coins for Adam Sandler to cannonball into like Scrooge McDuck might be the worst so far.

From Salon ● Jul. 27, 2025

Here they tautologically come, slowly walking down the hall, faster than a cannonball.

From BBC ● Dec. 31, 2024

Taryn loved Gigi too, and during the summer, the four of them would go to the rec center pool and lie in the sun and cannonball into the water.

From "Ivy Aberdeen’s Letter to the World" by Ashley Herring Blake

Human cannonballs are said to be a small and select group.

From Los Angeles Times ● Mar. 3, 2025

Over the last week, both artists’ camps launched new items like cannonballs.

From New York Times ● May 28, 2024

Nearby buildings and a shopping center were evacuated as a precaution, Waltham fire officials said in a post on X, and the unearthed cannonballs were disposed of safely by the bomb squad.

From Washington Times ● Nov. 28, 2023

Historical finds include cannonballs, a sword blade and a wheel experts believe belonged to a wagon that blew up during the two days of supply dumps.

From Seattle Times ● Nov. 13, 2023

It tells the story of a place that was working iron and steel so far back that it made cannonballs for the Union army.

From "Drama High" by Michael Sokolove

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