prolong

verb

pro·​long prə-ˈlȯŋ How to pronounce prolong (audio)
prolonged; prolonging; prolongs

transitive verb

1
: to lengthen in time : continue
2
: to lengthen in extent, scope, or range
prolonger noun
Choose the Right Synonym for prolong

extend, lengthen, prolong, protract mean to draw out or add to so as to increase in length.

extend and lengthen imply a drawing out in space or time but extend may also imply increase in width, scope, area, or range.

extend a vacation
extend welfare services
lengthen a skirt
lengthen the workweek

prolong suggests chiefly increase in duration especially beyond usual limits.

prolonged illness

protract adds to prolong implications of needlessness, vexation, or indefiniteness.

protracted litigation

Examples of prolong in a Sentence

Additives are used to prolong the shelf life of packaged food. High interest rates were prolonging the recession.
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.
The gamification of wildfire containment has raised ethical questions about a system that could, in theory, offers gamblers a perverse incentive to find ways to prolong the devastation in order to win their bets. Michael Gfoeller and David H. Rundell, Newsweek, 15 Jan. 2025 Grady lectures Blake on the fragility of life, teaching tough-love survival skills as a means of prolonging it. Peter Debruge, Variety, 15 Jan. 2025 History tells us that prolonged decelerations like this one are rare and finite. Peter Bendor-Samuel, Forbes, 14 Jan. 2025 With a 12-month extension prolonging his deal to 2026, Newcastle could command a reasonable fee for the 27-year-old, who has dropped out of the starting XI. James McNicholas, The Athletic, 13 Jan. 2025 See all Example Sentences for prolong 

Word History

Etymology

Middle English, from Middle French prolonguer, from Late Latin prolongare, from Latin pro- forward + longus long

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of prolong was in the 15th century

Dictionary Entries Near prolong

Cite this Entry

“Prolong.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prolong. Accessed 19 Jan. 2025.

Kids Definition

prolong

verb
pro·​long prə-ˈlȯŋ How to pronounce prolong (audio)
: to make longer in time
prolonged the visit

More from Merriam-Webster on prolong

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