ret·​ro·​fit | \ ˈre-trō-ˌfit How to pronounce retrofit (audio) , ˌre-trō-ˈfit\
retrofitted or retrofit; retrofitting; retrofits

Definition of retrofit

transitive verb

1 : to furnish (something, such as a computer, airplane, or building) with new or modified parts or equipment not available or considered necessary at the time of manufacture
2 : to install (new or modified parts or equipment) in something previously manufactured or constructed
3 : to adapt to a new purpose or need : modify retrofit the story for a new audience

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Other Words from retrofit

retrofit \ ˈre-​trō-​ˌfit \ noun

Did You Know?

The concept of retrofitting became an urgent necessity during World War II, when weapons technology was advancing at an intense pace and planes and ships were becoming outdated even before their construction was complete, and the only solution was to retrofit the completed craft with the brand-new technology. Retrofitting was revived on a massive scale during the energy crisis of the 1970s, when new features were added to millions of old houses to make them more energy-efficient. Retrofitting is thus different from merely renovating, which may not involve any new technology at all.

Examples of retrofit in a Sentence

The factory has been retrofitted to meet the new safety regulations. We can retrofit your car with the new fuel system.
Recent Examples on the Web But little is known of the start-up or who backs it, and the company declined to share details beyond describing its technology as designed to be retrofitted into existing commercial fleets to make driving safer. Patrick Mcgee, Los Angeles Times, "Pronto vows to deliver despite charges against founder," 2 Sep. 2019 Adkins, meanwhile, is much more the country-rocker, taking classic crunchy guitar riffs and retrofitting them with a touch of twang and subject matter full of fishing, pickup trucks and lots of winking double entendre. Rob Hubbard, Twin Cities, "Trace Adkins, Clint Black, Terri Clark shimmer in rainy Grandstand show," 25 Aug. 2019 A few years ago, The Verge traveled to Southern California to talk to a man named David Bernardo, whose company, Zelectric Motors, was refurbishing old Volkswagen Beetles and Microbuses and retrofitting them with electric powertrains. Sean O'kane, The Verge, "This Tesla-powered Porsche 912 is the new face of vintage restorations," 1 Aug. 2019 The state of Washington does not require old, rigid brick and concrete buildings to be retrofitted. David Gutman, The Seattle Times, "4.6 earthquake shakes Seattle region, no damage reported," 12 July 2019 In 2014, the district discovered seismic issues with an adjacent parking garage, eventually spending $33.5 million to retrofit it. Thy Vo, The Mercury News, "Flint Center’s half-century run as Silicon Valley entertainment hub comes to an end," 7 July 2019 Since 2005, Project Green Fleet has retrofitted more than 4,600 diesel vehicles – including 3,200 school buses – across the state. Frederick Melo, Twin Cities, "St. Paul replaces 10 Public Works vehicles with energy-efficient alternatives," 9 Sep. 2019 The Global SuperTanker, a Boeing 747-400 jet retrofitted to haul up to 20,000 gallons of water and fire retardant, has been contracted by the Bolivian government to help fight fires in the Amazon. Jennifer Leman, Popular Mechanics, "This 747 Is Fighting Fires in the Amazon," 28 Aug. 2019 The company has 1,335 commercial jets flying with its satellite-based in-flight Wi-Fi service, with a backlog of 510 aircraft waiting to be retrofitted with antennas to enable the service. San Diego Union-Tribune, "Viasat teams with travel outfits to deliver excursion bookings, destination videos during flights," 11 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'retrofit.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of retrofit

1949, in the meaning defined at sense 1

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Statistics for retrofit

Last Updated

12 Nov 2019

Time Traveler for retrofit

The first known use of retrofit was in 1949

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More Definitions for retrofit


How to pronounce retrofit (audio)

English Language Learners Definition of retrofit

: to provide (something) with new parts that were not available when it was originally built

More from Merriam-Webster on retrofit

Thesaurus: All synonyms and antonyms for retrofit

Rhyming Dictionary: Words that rhyme with retrofit

Nglish: Translation of retrofit for Spanish Speakers

Comments on retrofit

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