To connect, set up or prepare something for use, often specifically (in Computing) to transfer software onto a device's permanent storage and put it in a state where it is ready to be run when needed, usually decompressing it if necessary and performing any necessary pre-first-run configuration.
To admit formally into an office, rank or position.
To establish or settle in.
An installation. (Usage originated as a truncated form of the word installation.)
Installer. A software utility that installs an application.
To escort someone to the exit of the premises; to expel someone from a room, gathering, etc.
To dismiss, fire, or reject; to exclude someone who was formerly included.