installations

plural of installation

(countable, uncountable) An act of installing.
(countable, uncountable) Something installed, especially the whole of a system of machines, apparatus, and accessories, when set up and arranged for practical working, as in electric lighting, transmission of power, etc.
(countable, uncountable) A work of installation art.
(countable, uncountable) A grouping of facilities that constitute a permanent military base.