n. A gibbet: same as cross, 1.n. A structure or monument in the form of a cross: same as cross, 2.n. A crucifix: same as crossn. A mark or sign in the form of a cross: same as cross, 4.To mark the sign of the cross upon: same as cross, 3.To mark or designate with the sign of the cross, as a pilgrim or a crusader.