fourfold

adjective

four·​fold ˈfȯr-ˌfōld  -ˈfōld 

1

: being four times as great or as many

2

: having four units or members

fourfold

ˈfȯr-ˈfōld 

adverb

Examples of fourfold in a Sentence

There has been a fourfold increase in membership this year.

Recent Examples on the Web

Joby’s all-electric S4 currently has a range of about 150 miles, while the liquid-hydrogen version extends it almost fourfold. —Michael Verdon, Robb Report, 18 July 2025

Recent executive orders from President Trump aim for a fourfold increase in nuclear capacity from 100 GW to 400 GW by 2050. —Trefis Team, Forbes.com, 23 June 2025

The ability to meet their medical needs—including prescriptions, refills, and doctors' visits—increased fourfold. —Nuri Kino, MSNBC Newsweek, 19 June 2025

Clem believes the solution is fourfold: Secure the border by expanding walls, forts and technology. —Therese Boudreaux | The Center Square, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 19 June 2024

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

Rhymes for fourfold

• ahold
• behold
• billfold
• blindfold
• cajoled
• consoled
• controlled
• cotswold
• eightfold
• enfold
• enrolled
• extolled

Kids Definition

fourfold

adjective

four·​fold -ˌfōld 

-ˈfōld

: being four times as great or as many