significant figure

American  

[sig-nif-i-kuhnt fig-yer] / sɪgˈnɪf ɪ kənt ˈfɪg yər /

noun

1. each of the digits forming a number that expresses a determined degree of calculation: a sequence of significant figures always begins with the number’s first nonzero digit.

   Rounding each of the measurements to three significant figures, your answers to the first two problems should be 19.0 inches and 4.52 kilometers, respectively.

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Etymology

Origin of significant figure

First recorded in 1610–20

Example Sentences

MJ Lenderman, who played on “Tigers Blood” and is a significant figure in contemporary alt-country in his own right, putting out a highly regarded solo effort last year, lends support on multiple instruments.

From The Wall Street Journal • Nov. 4, 2025

Whatever the public perception, Vance’s ambitions and adaptability suggest he is poised to remain a significant figure in American politics for years to come.

From Salon • Nov. 3, 2024

DiCaprio was originally attached to star as White, who is a much more significant figure in Grann’s book.

From Los Angeles Times • Oct. 20, 2023

Ms Rayner is a significant figure in Labour as the elected deputy leader, and will have influence over Labour's policies on strengthening employment rights in the run up to the next general election.

From BBC • Sep. 12, 2023

So suppose the United States wanted to reduce enemy forces by 20 percent—a significant figure, though hardly enough to break their will.

From "Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War" by Steve Sheinkin