Meaning of “impersonate” - Learner’s Dictionary

impersonate

verb [ T ] uk us /ɪmˈpɜːsəneɪt/

to copy the way someone looks and behaves in order to pretend to be them or to make people laugh:

Impersonating a police officer is a serious offence.
impersonation uk us /ɪmˌpɜːsənˈeɪʃən/ noun [ C, U ]

He did an impersonation of Barack Obama.
impersonator noun [ C ]

an Elvis impersonator

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