/ ɪnˈstɔːl; NAmE / verb [ vn ]
1.
to fix equipment or furniture into position so that it can be used :
He's getting a phone installed tomorrow.
The hotel chain has recently installed a new booking system.
2.
to put a new program into a computer :
I'll need some help installing the software.
3.
install sb (as sth) to put sb in a new position of authority, often with an official ceremony :
He was installed as President last May.
4.
to make sb/yourself comfortable in a particular place or position :
We installed ourselves in the front row.
••
WORD ORIGIN
late Middle English (in sense 2): from medieval Latin installare , from in- into + stallum place, stall. Sense 1 dates from the mid 19th cent.