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Use "knock-out" in a sentence
"We watch him transform the implications of Paul Cézanne's hard-won, carefully adjusted touches into an evocative language of planes, strokes and angles in landscapes, figure studies, heads, a knock-out still life of a chocolate pot with the presence of one of the Demoiselles d'Avignon, and a pair of stunning watercolors of bathers in a forest."
"Note - learn that move to knock-out bad guys with one punch, and how to take down a room of armed enemies without getting hurt."
"Each year Consumerist.com hosts a no-holds-barred, throw down, knock-out fight to determine the Worst Company in America. 32 companies enter -- but only one leaves."