Armour/ˈɑːrmər/ Definition 1 of 4Pro Tip 1/3Combat Context Used often in historical or fantasy settings related to warfare. In the medieval era, armour was crucial on the battlefield. Pro Tip 2/3Physical Protection Implies thorough protection, as in covering the body, usually metal for humans. The armour clanked as the soldier marched. Pro Tip 3/3Modern Uses Modern uses may refer to protective gear for various activities (sports, police). The riot police wore armour for crowd control.