An antiaircraft weapon is a type of weapon designed to be used against aircraft. The two crossword solutions for this term are SAM, which stands for Surface-to-Air Missile, and BOFORS, which stands for Bofors 40 mm gun. SAMs are missiles that are launched from the ground or sea to intercept and destroy enemy aircraft. BOFORS guns are artillery pieces that fire explosive shells at high speeds to shoot down aircraft.