Pronunciation: /ɪnstəˈleɪʃ(ə)n/
noun
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1 [mass noun] the action of installing someone or something, or the state of being installed: the installation of a central heating system [count noun]: the use of the system could be followed by installations on other vehicles
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2a large piece of equipment installed for use: computer installations
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a military or industrial establishment: nuclear installations
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an art exhibit constructed within a gallery: a video installation