twice I. \ˈtwīs\adverb Etymology: Middle English twies, twys, from Old English twiges, from twiga, twiwa twice + -es -s; akin to Old English twi- — more at twi- 1.: for a first and second time : on two occasions < twice absent without leave > 2.: two times : as multiplied by two : in doubled quantity, amount, or degree < twice two is four > < would be guaranteed twice over — Newsweek > • - at twice II. adjective archaic: twofold