a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten

an alloy of copper and zinc

an alloy of copper and tin and sometimes other elements; also any copper-base alloy containing other elements in place of tin

a 60/40 alloy of copper and nickel

an alloy of copper and aluminum with high tensile strength and resistance to corrosion

an alloy of copper and nickel with high electrical resistance and a low temperature coefficient; used as resistance wire