retrofit

verb

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

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
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during World War II, when weapons technology was advancing at an intense pace and planes and ships were becoming outdated even before their construction was complete, and the only solution was to retrofit the completed craft with the brand-new technology.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
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.
Trump claimed that the approximately $400 million jet would be a gift to the United States government and would be retrofitted to be Air Force One until the end of his term. Isabel Danzis, ABC News, 18 May 2025 But administration officials have neglected to mention that any such gifted aircraft would need to be retrofitted from the inside out with new power systems, electrical wiring and other technology for secure communications and self-defense. Ellen Mitchell, The Hill, 14 May 2025 The plan is to retrofit it into a VX4 prototype, using the same airframe, and begin flight testing in the second quarter of 2026. Nicole Kobie, Forbes.com, 13 May 2025 What To Know The Qatari Ministry of Defense has offered the Boeing 747-8 to the Pentagon, which will retrofit it with state-of-the-art security and communications to serve as Air Force One, as first reported by ABC News. Josh Hammer, MSNBC Newsweek, 12 May 2025 See All Example Sentences for retrofit

Word History

First Known Use

1949, in the meaning defined at sense 1

Time Traveler
The first known use of retrofit was in 1949

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Cite this Entry

“Retrofit.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/retrofit. Accessed 24 May. 2025.

Kids Definition

retrofit

verb
ret·​ro·​fit ˈre-trō-ˌfit How to pronounce retrofit (audio)
: to install (new or modified parts or equipment) in something previously manufactured or constructed

More from Merriam-Webster on retrofit

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