Definition of double
consisting of or involving two
parts or components
usually in pairs; "an egg with a
double yolk"; "a
double (binary) star"; "double doors"; "dual controls for
pilot and copilot"; "duple (or double)
time consists of two (or a
multiple of two)
beats to a measure"
having two meanings with
intent to deceive; "a sly
double meaning"; "spoke with forked tongue"
hit a two-base hit