Meaning of DOUBLE in English

DOUBLE

( a. )

To make of two thicknesses or folds by turning or bending together in the middle; to fold one part upon another part of; as, to double the leaf of a book, and the like; to clinch, as the fist; -- often followed by up; as, to double up a sheet of paper or cloth.

Webster's Revised Unabridged English Dictionary.      Пересмотренный полный словарь английского языка Webster.