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 In the case of Maya and Carina, that meant accelerating the timeline slightly to show their early experiences with motherhood, rather than prolonging their struggles to start a family. Max Gao, NBC News, 11 Apr. 2024 Efforts to prolong the trial, and potentially force Democrats to cast some hard votes, are now more likely to materialize without senators rushing to catch flights home. Liz Goodwin, Washington Post, 10 Apr. 2024 Always be sure to follow the manufacturer's recommendations for temperature and wash/dry cycles to prolong the usefulness of the mattress protector. Kelsey Kunik, Parents, 10 Apr. 2024 Both drugs are also known to prolong flares for months (particularly if there has been a pustular eruption). Maureen Salamon, Verywell Health, 10 Apr. 2024 Hemp seeds are rich in fiber, helping to regulate bowel functions, reduce sugar cravings, and reduce appetite by prolonging the feeling of being sated. Alessandra Signorelli, Vogue, 4 Apr. 2024 Tom’s objective soon shifts to prolonging his own stay. Judy Berman, TIME, 4 Apr. 2024 The project is about 96% complete, Fitch said, but ongoing issues could prolong its completion. Colleen Shalby, Los Angeles Times, 29 Mar. 2024 But since the Park Service announced peak bloom March 17, the second-earliest date on record, temperatures have been slightly cooler than normal, prolonging the bloom. Kevin Ambrose, Washington Post, 28 Mar. 2024

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 19 Apr. 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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