speed
noun
rapidity in moving, going, traveling, proceeding, or performing; swiftness; celerity: the speed of sound.
was speeding
-
past progressiveof speed.past progressive
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
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.
The cosmological constant returned to prominence in the 1990s, when astronomers discovered that cosmic expansion was speeding up.
From Science Daily ● Oct. 29, 2026
If that were true, astronomers could have been misreading the supernova data and incorrectly concluding that cosmic expansion was speeding up when it was actually slowing.
From Science Daily ● Aug. 29, 2026
On Nov. 27, 2024, Jordan Miller was riding in the passenger seat when the driver, who was speeding, lost control and crashed into a tree at Hampton Road and King Avenue.
From Los Angeles Times ● Mar. 19, 2026
A few years ago, Hu Anyan was speeding through the streets of Beijing on a three-wheel motorbike loaded with packages, one of millions of delivery drivers working for China's online retail giants.
From Barron's ● Jan. 9, 2026
The drawbridge reached the ground and Piggy was speeding across before it touched.
From "The Once and Future King" by T. H. White
