Meaning of “misuse” - Learner’s Dictionary

misuse

verb [ T ] uk us /ˌmɪsˈjuːz/

to use something in the wrong way or for the wrong purpose:

He misused his position to obtain money dishonestly.
misuse uk us /ˌmɪsˈjuːs/ noun [ C, U ]

the misuse of drugs/power

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