twice

adverb2

1. •
   2 times

   • You should brush your teeth twice a day.
   • No person shall be elected to the office of the President more than twice, and no person who has held the office of President, or acted as President, for more than two years of a term to which some other person was elected President shall be elected to the office of the President more than once. (1947, Twenty-second Amendment to the United States Constitution, Section 1)
2. •
   Doubled in quantity, intensity, or degree.

   • You can't get anything thinner than a spring shad, unless you take a couple of them, when, of course, they will be twice as thin. — 1896