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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:

“We need to have the basic things,” said Biniam Girmay, a high-speed cannonball from Eritrea who in 2024 won three sprint stages at the Tour de France.

From The Wall Street Journal Oct. 10, 2025

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

Valencia says on his website he has more than two decades of experience as a human cannonball.

From Los Angeles Times Mar. 3, 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

A crew digging a hole for an electrical conduit in Waltham, Massachusetts, Monday unearthed 13 cannonballs.

From Washington Times Nov. 28, 2023

For years, it was unclear why, but a new study suggests jet expulsions of hot matter burped out like cosmic cannonballs are behind it.

From Salon Aug. 30, 2023

“Sometimes, we’d wait until boats were coming into the harbor and do cannonballs, splashing them,” she recalled often.

From Los Angeles Times Mar. 10, 2023

The images centered on the 1797 warship USS Constitution, better known as Old Ironsides because, while it sank a British vessel during the War of 1812, its thick, oak hull survived a barrage of cannonballs.

From Seattle Times Dec. 1, 2022

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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