Meaning of “overthrow” - Learner’s Dictionary

overthrow

verb [ T ] uk us /ˌəʊvəˈθrəʊ/ (past tense overthrew, past participle overthrown)

to remove someone from power by using force:

They were accused of plotting to overthrow the government.
overthrow uk us /ˈəʊvəθrəʊ/ noun [ no plural ]

the overthrow of the government

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