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during World War II, when weapons technology was advancing at an intense pace and planes and ships were becoming outdated even before their construction was complete, and the only solution was to retrofit the completed craft with the brand-new technology.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

The 70-square-foot cells originally designed in 1986 to house one person have been retrofitted to hold three. Elise Schmelzer, The Denver Post, "Arapahoe County residents to decide whether to raise property taxes to pay for new jail," 27 Aug. 2019 UC Berkeley's Doe Memorial Library was retrofitted in the 1990s with the addition of concrete walls. Los Angeles Times, "Earthquakes could kill people in many UCLA, UC Berkeley buildings, officials say," 29 Aug. 2019 Campuses constructed in the last century with open grounds and convenient access are being retrofitted with perimeter fencing, buzz-in entry gates and security cameras. San Diego Union-Tribune, "Back to school checklist: lunchbox, backpack, security systems," 9 Aug. 2019 Districts wouldn’t have to retrofit their current fleets. USA TODAY, "Momoa at Mauna Kea, Confederate context, Guthrie garbage tribute: News from around our 50 states," 2 Aug. 2019 The eventual result could become a landmark decision over the rights of people with disabilities and the responsibility of companies to retrofit mobile apps and websites for accessibility. Nick Statt, The Verge, "Domino’s asks the Supreme Court to shut down a lawsuit requiring its website be accessible to blind people," 1 Aug. 2019 These latter two Oasis-class ships brought a slew of new features that Royal decided to retrofit onto Oasis this year for its 10th birthday and on Allure next year for its 10th year sailing. Richard Tribou,, "Royal Caribbean to revamp one of the world’s largest cruise ships," 12 July 2019 Several smaller, newer outfits have devoted themselves to long-haul trucking, and plan to retrofit semis with their gizmos. Alex Davies, WIRED, "Aurora's Latest Deal Will Be a Heavy-Duty Test With Chrysler," 10 June 2019 Instead, the first thing that will come into view is a truck that has been retrofitted as a photo booth. Christopher Muther,, "Micro hotels are the next big thing in Boston," 15 Aug. 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

1 Oct 2019

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Time Traveler for retrofit

The first known use of retrofit was in 1949

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More Definitions for retrofit



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

Rhyming Dictionary: Words that rhyme with retrofit

Thesaurus: All synonyms and antonyms for retrofit

Nglish: Translation of retrofit for Spanish Speakers

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