Definition of "calm down" [calm down]

• To become less excited, intense, or angry. (verb)
• To cause to become less excited, intense, or angry. (verb)

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• "Deejay Iceman tried to calm down the angry callers on the radio, but like I said earlier, no one could stop this hurricane."
• "My mother ran inside to turn the radio on, and sure enough Jerry Rushin was on WEDR telling everyone to calm down and keep the peace."
• "She was a part of the reception team, when a girlygirl was needed to calm down a frustrated arrival or to postpone a quarrel."