Dare

v. (ring; 3rd sing. present usu. dare before an expressed or implied infinitive without to) 1 (foll. by infin. with or without to) have the courage or impudence (to) (dare he do it?; if they dare to come; how dare you.. 2 (usu. foil. by to + infin.) defy or challenge (I dare you to own up). n. 1 act of daring. 2 challenge, esp. to prove courage. c. I dare say 1 (often toll. by that) it is probable. 2 probably; I grant that much. [Old English]