Meaning of TWICE in English

TWICE

/ twaɪs; NAmE / adverb

1.

two times; on two occasions :

I don't know him well; I've only met him twice.

They go there twice a week / month / year .

a twice-monthly / yearly newsletter

2.

double in quantity, rate, etc. :

an area twice the size of Wales

Cats sleep twice as much as people.

At 56 he's twice her age.

IDIOMS

- twice over

—more at lightning noun , once adverb , think verb

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WORD ORIGIN

late Old English twiges , from the base of two + -s (later respelled -ce to denote the unvoiced sound); compare with once .

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.