twice 
/ˈtwaɪs/ adverb
/ˈtwaɪs/ adverb 1 : two times : on two occasions
▪ I only wore it twice. ▪ I called you twice. ▪ He has rehearsals twice a month. ▪ He twice lost to younger opponents. ▪ We visited them twice in 10 years. ▪ The dictionary has been twice updated since 1993. ▪ I've been there at least twice. ▪ We've eaten at that restaurant once or twice. [=one or two times] ▪ We go to Europe twice a year. [=two times every year] ▪ The mail is delivered twice a day. [=two times every day] 2 : doubled in amount or degree
▪ The new house is twice [=two times] as large as our old one. ▪ He must be twice her age. ▪ The population is twice that of Canada. ▪ The new one costs about twice as much. ▪ He could earn twice his present salary at the new job. ▪ Twice two is four. [=two times two is/equals four]
▪ I only wore it twice. ▪ I called you twice. ▪ He has rehearsals twice a month. ▪ He twice lost to younger opponents. ▪ We visited them twice in 10 years. ▪ The dictionary has been twice updated since 1993. ▪ I've been there at least twice. ▪ We've eaten at that restaurant once or twice. [=one or two times] ▪ We go to Europe twice a year. [=two times every year] ▪ The mail is delivered twice a day. [=two times every day]
▪ The new house is twice [=two times] as large as our old one. ▪ He must be twice her age. ▪ The population is twice that of Canada. ▪ The new one costs about twice as much. ▪ He could earn twice his present salary at the new job. ▪ Twice two is four. [=two times two is/equals four]
think twice — see 1think
