intervene

Definition

To become involved in a situation, so as to alter or prevent an action.

Etymology

Back-formation from intervention, and/or from Latin interveniō (“come between”, verb).

Example Sentences

• "The police had to be called to intervene in the fight."
• "Nature film-makers are discouraged from intervening in the events they are attempting to capture on film."
• "An instant intervened between the flash and the report."

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