[ verb re-troh-fit, re-troh-fit; noun, adjective re-troh-fit ]
See synonyms for retrofit on
verb (used with object),ret·ro·fit·ted or ret·ro·fit, ret·ro·fit·ting.
  1. 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.

  2. to install, fit, or adapt (a device or system) for use with something older: to retrofit solar heating to a poorly insulated house.

verb (used without object),ret·ro·fit·ted or ret·ro·fit, ret·ro·fit·ting.
  1. (of new or modified parts, equipment, etc.) to fit into or onto existing equipment.

  2. to replace existing parts, equipment, etc., with updated parts or systems.

  1. something that has been retrofitted.

  2. an instance of updating, enlarging, etc., with new or modified equipment: A retrofit could save thousands of dollars.

  1. being or characterized by a retrofit: retrofit units.

Origin of retrofit


Other words from retrofit

  • ret·ro·fit·ta·ble, adjective

Words Nearby retrofit Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use retrofit in a sentence

British Dictionary definitions for retrofit


/ (ˈrɛtrəʊˌfɪt) /

verb-fits, -fitting or -fitted
  1. (tr) to equip (a vehicle, piece of equipment, etc) with new parts, safety devices, etc, after manufacture

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012