Definition of "x-factor" []

• Alternative spelling of X factor. (noun)

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• "We've missed a certain x-factor in players but I think we're getting that now in Jade Dernbach and Eoin Morgan, Swann said."
• "One x-factor that could impede Murkowski's historic candidacy: translating the energy for her on the ground into actual write-in votes."
• "But look for Tony Logan to be the x-factor in this game."