retrofit

[ verb re-troh-fit, re-troh-fit; noun adjective re-troh-fit ]

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.

noun

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.

adjective

1. being or characterized by a retrofit:

   retrofit units.

retrofit

/ ˈrɛtrəʊˌfɪt /

verb

1. tr to equip (a vehicle, piece of equipment, etc) with new parts, safety devices, etc, after manufacture

Other Words From

• retro·fitta·ble adjective

Word History and Origins

Origin of retrofit¹

retro- + fit ¹

Example Sentences

Portland, Oregon, surprisingly late to the party, is launching a retrofit this year.

From The Daily Beast

Intelligent adaptors and switches that would retrofit energy-based devices at home so they can communicate with smart meters.

From The Daily Beast

Related Words

• backfit