Meaning of “install” - Learner’s Dictionary

install

verb ( also UK instal) uk us /ɪnˈstɔːl/
EQUIPMENT [ T ]

B1 to put a piece of equipment somewhere and make it ready to use:

The school has installed a burglar alarm.
PERSON [ T ]

to give someone an important and powerful job:

She will be installed as Managing Director in May.
COMPUTER [ I, T ]

B1 to put software onto a computer

installation uk us /ˌɪnstəˈleɪʃən/ noun [ C, U ]

(Definition of “install” from the Cambridge Learner’s Dictionary © Cambridge University Press)