IPA: /ɪnˈstæl.eɪ.ʃən/
KK: /ɪnˈstæl.eɪ.ʃən/
The process of setting up equipment or a system so that it is ready to use.
The installation of the new software took several hours.
Installation → It is formed from "in-" (meaning into) and "stallo" (from Latin "stallare", meaning to place or set up) and the suffix "-tion" (meaning the action or process of). The word "installation" refers to the action or process of placing something into a position or setting it up.
Think of 'placing something into' ('in-') a specific position ('stallo') — that's why installation means the process of setting something up.