noun
EXAMPLES FROM CORPUS
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As they neared James River and caught sight of our gunboats, a cheer went up from each regiment.
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Business people no longer believed that gunboats and garrisons were vital for the protection and promotion of their activities.
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Marvels newsman Albert Richardson: On the gunboats not a man was killed, and only eight were wounded.
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Our stragglers, their courage revived by sight of the gunboats, came up the hill, seeking their regiments.
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Perhaps it's something to do with being the only civil department still with the power to send in a gunboat .
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So perhaps Britain was about to send a gunboat to shell the Perrier works after all?
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The use of gunboats increased towards the end of the war.