How to use cross in a sentence. Cross definition, a structure consisting essentially of an upright and a transverse piece, used to execute persons in ancient times. See more. A cross is a geometrical figure consisting of two intersecting lines or bars, usually perpendicular to each other.
The cross is thus a sign of both Christ himself and of the faith of Christians. Learn more about the history and symbolism of the cross. cross top: Maltese and St.