retrofit
verb (used with object)
to modify equipment (in airplanes, automobiles, a factory, etc.) that is already in service using parts developed or made available after the time of original manufacture.
had retrofitted
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past perfectof retrofit.past perfect
Used to express a completed action that took place before another specific past action occurred.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
On a recent summer day, Leong stepped into a Volkswagen microbus that he had retrofitted with Tesla batteries, a side project that expanded his interests from software to hardware engineering.
From The Wall Street Journal ● Aug. 20, 2026
But the billionaire's most luxurious planes were a pair of 737 jets he had retrofitted like a lounge, complete with recliners, love seats, mahogany dining and card tables and gourmet food.
From Salon ● Aug. 10, 2023
Then, led by bagpipers, a vintage trailer that Rowe had retrofitted into a mobile soup kitchen is wheeled out of a fire-station bay.
From Seattle Times ● Oct. 3, 2017
If Taser had retrofitted or recalled the X26, she argued in her suit, her husband might still be alive.
From Reuters ● Sep. 21, 2017
The day after the administration proposed that Witt’s successful Project Impact be cut, a 6.8-magnitude earthquake shook Washington state, where its grants had retrofitted schools, bridges, and houses to withstand shocks.
From Slate ● Sep. 7, 2016
