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 Wash and remove stems and pits right before using the cherries to prolong their life. Sarah Martens, Better Homes & Gardens, 17 June 2024 McGee, whose favorite brand of water is Mountain Valley, said he’s learned some of the healthier ways to consume water such as from a glass rather than plastic or adding Celtic sea salt for natural electrolytes, changing the water’s molecular levels and prolonging hydration. Marcus D. Smith, Sacramento Bee, 14 June 2024 The Nurses’ Health Study also highlights that prolonged sitting can reduce insulin sensitivity, which can put people at risk for chronic conditions like diabetes. Byalexa Mikhail, Fortune Well, 14 June 2024 Anime’s global reach continues to grow and long may this be prolonged. Max Goldbart, Deadline, 14 June 2024 See all Example Sentences for prolong 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'prolong.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 4 Jul. 2024.

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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