To remove something by, or as if by, sweeping.(verb)
To overwhelm someone emotionally; sweep someone off their feet.(verb)
To completely destroy, to annihilate(verb)
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Use "sweep away" in a sentence
"Taim's opposition seemed to sweep away Rand's uncertainty."
"If we get a good tide with us, we shall sweep away the whole inertia, which is the whole force of these gentlemen, except Norton."
"A chill winter and the frozen dead stack up like cordwood, while summer fevers sweep away legions too weak to fight them off while you sit in comfort in your palaces."