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Use "winningness" in a sentence
"Or, all players can earn "winningness" scores based on performance, accumulating them over the course of their careers, like baseball statistics."
"But apparently the sponsors, overwhelmed by Thompson's winningness, have decided to "retire the trophy" to her, and make a new one for next year's winner."
"I just won a Jumpstart To Green Kit and, if you read the post that describes my winningness, you can enter to win Horizon Organic Eggnog."