fourfold
adjective
four·fold
ˈfȯr-ˌfōld 
-ˈfōld
-ˈfōld
1
: being four times as great or as many
2
: having four units or members
Examples of fourfold in a Sentence
There has been a fourfold increase in membership this year.
Recent Examples on the Web
What accounts for this fourfold rise?
—
Trefis Team, Forbes.com, 22 Jan. 2026
That’s a nearly fourfold increase from the first half of 2025.
—Rick Porter, HollywoodReporter, 20 Jan. 2026
Perry’s insurance costs have increased fourfold since 2019, and her payroll expenses are up 35 percent from pre-pandemic levels.
—Lauren Hilgers, Harpers Magazine, 30 Dec. 2025
That is a fourfold increase over early AL-31 variants and a substantial leap over existing production engines.
—Chris Young, Interesting Engineering, 19 Nov. 2025
See All Example Sentences for fourfold
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Trefis Team, Forbes.com, 22 Jan. 2026
That’s a nearly fourfold increase from the first half of 2025.
—Rick Porter, HollywoodReporter, 20 Jan. 2026
Perry’s insurance costs have increased fourfold since 2019, and her payroll expenses are up 35 percent from pre-pandemic levels.
—Lauren Hilgers, Harpers Magazine, 30 Dec. 2025
That is a fourfold increase over early AL-31 variants and a substantial leap over existing production engines.
—Chris Young, Interesting Engineering, 19 Nov. 2025
See All Example Sentences for fourfold
Cite this Entry
“Fourfold.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fourfold. Accessed 3 Feb. 2026.
Copy CitationKids Definition
fourfold
adjective
four·fold
-ˌfōld
-ˈfōld
: being four times as great or as many
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