fourfold

adjective

1
: being four times as great or as many
2
: having four units or members
fourfold adverb

Examples of fourfold in a Sentence

There has been a fourfold increase in membership this year.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In early August, ChatGPT executive Nick Turley announced on X that the chatbot was on track to reach 700 million weekly active users, a fourfold increase since last year. Jillian Frankel, People.com, 19 Aug. 2025 According to Singapore's central bank, BNPL transactions reached around SG$440 million in 2021, a nearly fourfold increase from 2020. Lee Ying Shan, CNBC, 14 Aug. 2025 Insomnia itself was associated with a reduction of between 43 percent and 79 percent in the abundance of seven groups of bacteria and a 65 percent to a more than fourfold increase in the abundance of 12 other groups. Hannah Millington, MSNBC Newsweek, 12 Aug. 2025 ChatGPT is slated to reach 700 million weekly users this week, according to CNBC, marking a fourfold increase from last year, when GPT-4o was launched. Antonio Pequeño Iv, Forbes.com, 7 Aug. 2025 See All Example Sentences for fourfold

Word History

Etymology

Middle English, from Old English fēowerfeald, from fēower + -feald -fold

First Known Use

before the 12th century, in the meaning defined at sense 1

Time Traveler
The first known use of fourfold was before the 12th century

Browse Nearby Words

Cite this Entry

“Fourfold.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fourfold. Accessed 9 Sep. 2025.

Kids Definition

fourfold

adjective
four·​fold -ˌfōld How to pronounce fourfold (audio)
-ˈfōld
: being four times as great or as many

More from Merriam-Webster on fourfold

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