Nickel, Nickeline, Nickel (United States coin), Ore genesis, Nichrome, Nickel tetracarbonyl, Nickel (Canadian coin), Nickel aluminide, Nickel(II) chloride, Nickel(II) sulfate, Nickel(III) oxide, Nickelocene, Nickel silver, Nickel-cadmium battery, Nickel hydrogen battery, Nickel-metal hydride battery, Nickel-iron battery, Isotopes of nickel