twice

UK: /ˈtwaɪs/ US: /twaɪs/ ,(twīs)

WordReference Random House Learner's Dictionary of American English © 2026

twice /twaɪs/   adv. 

1. two times:
   Our class meets twice a week.
2. on two occasions:
   We saw him twice, once on Saturday and once on his wedding day.
3. in twofold amount or degree:
   It costs twice as much money to fly to Los Angeles as it does to Chicago.

WordReference Random House Unabridged Dictionary of American English © 2026

twice (twīs),  adv. 

1. two times, as in succession:
   Write twice a week.
2. on two occasions;
   in two instances:
   I phoned him twice.
3. in twofold quantity or degree;
   in double the amount or degree:
   twice as much.

• bef. 1150; Middle English twies, equivalent. to twie twice (Old English twige, cognate with Old Frisian twīa, Old Saxon tuuīo; see twi-) + -s -s¹

Collins Concise English Dictionary © HarperCollins Publishers::

twice / twaɪs/ adverb

1. two times; on two occasions or in two cases
2. double in degree or quantity: twice as long

Etymology: Old English twiwa; related to Old Norse tvisvar, Middle Low German twiges