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installation

American  
[in-stuh-ley-shuhn] / ˌɪn stəˈleɪ ʃən /

noun

  1. something installed, as machinery or apparatus placed in position or connected for use.

  2. the act of installing.

  3. the fact of being installed.

  4. Military. any more or less permanent post, camp, station, base, or the like, for the support or carrying on of military activities.


installation British  
/ ˌɪnstəˈleɪʃən /

noun

  1. the act of installing or the state of being installed

  2. a large device, system, or piece of equipment that has been installed

  3. a military establishment usually serving in a support role

  4. an art exhibit often involving video or moving parts where the relation of the parts to the whole is important to the interpretation of the piece

"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

Other Word Forms

Etymology

Origin of installation

First recorded in 1600–10, installation is from the Medieval Latin word installātiōn- (stem of installātiō ). See install, -ation

Explanation

Installation is the process of putting something in a position so it can work properly. If the installation of the new dishwasher goes badly, you'll end up with water all over the kitchen floor. Installation is frequently used for appliances and machinery, like the installation of a fountain in your yard or the installation of a fan in your attic to help the house stay cool. You can also use it for people being set up in new positions or jobs: "The installation of a new president has been positive for the university." When artists talk about installations, they mean semi-permanent art exhibits: "The video installation in the museum's elevator is very innovative."

Keep Reading on Vocabulary.com

Vocabulary lists containing installation

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.

Installation is expected to cost more than £500m, rising to "late hundreds of millions" when IT costs are factored in.

From BBC • Apr. 28, 2026

Installation can run into the thousands of dollars, but federal tax credits can offset some of the costs — plus, you’ll save on your electric bill in the long run.

From MarketWatch • Nov. 10, 2025

Installation of the steel girders were completed back in April, and crews have since been assembling wood forms and placing reinforcing rods in preparation for concrete pouring.

From Los Angeles Times • Aug. 6, 2024

Installation of an adaptive system at a single intersection can cost as much as $50,000, with regular maintenance required -- a price tag not all communities can afford.

From Science Daily • Feb. 20, 2024

Even at Research Installation 83 very, very few persons had the least idea what had taken place.

From The Machine That Saved The World by Leinster, Murray