A drum beaten as a summons to war or an accompaniment to the fray. Also fig.

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1593.  Peele, Edw. I., A 3 b. Welcome, manly followers, That … on your war drums carry crownes as kings.

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1809.  Campbell, Gert. Wyom., III. xx. But hark! what nearer war-drum shakes the glade?

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1842.  Tennyson, Locksley Hall, 127. Till the war-drum throbb’d no longer, and the battle flags were furl’d.

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1880.  McCarthy, Own Times, IV. lvii. 245. He beat the war-drum this time with tremendous energy.

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