C2to intentionally become involved in a difficult situation in order to improve it or prevent it from getting worse: The Central Bank intervened in the currency markets today to try to stabilize the exchange rate.[+ to infinitive]The minister intervened personally to stop the museum being closed.Taking part and getting involvedGetting involved for one's own benefit or against others' willintervention
/-ˈven.ʃən/noun[C or U]C2Half the people questioned said they were opposed to military intervention (in the civil war).Repeated interventions on the currency markets have failed to prevent the value of the currency falling.Taking part and getting involvedGetting involved for one's own benefit or against others' will
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