Dictionary.com
Thesaurus.com

rate of change

American  
[rayt-uhv chaynj] / ˈreɪt əv ˈtʃeɪndʒ /

noun

  1. Mathematics. the ratio between one variable's change and another variable's corresponding change, such as price over time.


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:

“The latter two have not been emphasized in the Tim Cook era but AI could require Apple to move with a higher rate of change when the speed of innovation is accelerating,” Mohan added.

From MarketWatch Aug. 20, 2026

The consumer-price index’s trailing 12-month rate of change jumped to 4.2% in the most recent month, up from 3.8% in the prior month and 2.4% a year earlier.

From MarketWatch Jun. 29, 2026

“The rate of change in our business is so high right now that the limitations it would put in our technical development efforts make that a pretty unattractive proposition for us.”

From Barron's Feb. 6, 2026

Affordability isn’t a synonym for inflation, which is the rate of change in the overall price level.

From The Wall Street Journal Nov. 23, 2025

In Darwin's scheme, the rate of change of an organism was generally fixed, while the rate of natural selection could be amplified to accelerate evolution or dampened to decelerate it.

From "The Gene" by Siddhartha Mukherjee

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training