billion
noun
a cardinal number represented in the U.S. by 1 followed by 9 zeros, and in Great Britain by 1 followed by 12 zeros.
billionth
-
a word derived from
billion.
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.
They were able to do so only for less than a billionth of a second.
From Los Angeles Times ● Mar. 3, 2026
Every metre of distance between two chips adds a nanosecond, one billionth of a second, to the processing time.
From BBC ● Sep. 22, 2025
Seeing Escola on the Tonys red carpet, I couldn’t help but recall that video for the billionth time.
From Salon ● Jun. 9, 2025
The researchers' machine learning algorithm can spot protein clumps down to a billionth of a meter in microscopy images.
From Science Daily ● May 22, 2024
After I use the bathroom for the billionth time, I finally find Lorena in the back porch, surrounded by a circle of cretins who are way too old to be at a high school party.
From "I Am Not Your Perfect Mexican Daughter" by Erika L. Sánchez
