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Use "single-mindedness" in a sentence
"But Massinger has little of Ben Jonson's single-mindedness."
"Granddad went at his task with single-mindedness, discipline, certainty of results, and a conviction that he was divinely blessed."
"It's a compelling, odd exhibition, remarkable for simultaneously revealing the single-mindedness of Guston's approach and the wide range of sources for his Roman paintings."