Plate armor is a type of protective body armor that was used in medieval times. It was made of metal plates that were riveted or laced together, forming a protective layer for the wearer. There are several synonyms for plate armor, including full armor, full plate armor, suit of armor, and full-body armor. These terms describe a complete set of armor that covers the entire body, including the legs, arms, torso, and head. Plate armor was used by knights, soldiers, and warriors in battle, providing effective protection against swords, arrows, and other weapons. Its use declined with the advent of gunpowder and firearms, but remains a popular symbol of medieval warfare and chivalry.