Real Dictionary

ore
variable noun: Ore is rock or earth from which metal can be obtained.

Ore in American English
a monetary unit of Sweden, equal to 1⁄100 of a krona
any natural combination of minerals, esp. one from which a metal or metals can be profitably extracted
Oregon
noun: a bronze coin of Norway, the 100th part of a krone
noun: a metal-bearing mineral or rock, or a native metal, that can be mined at a profit

ore in British English
noun: a Scandinavian monetary unit worth one hundredth of a Swedish krona and (øre) one hundredth of a Danish and Norwegian krone
noun: any naturally occurring mineral or aggregate of minerals from which economically important constituents, esp metals, can be extracted

Ore. in American English
abbreviation: Oregon

øre in American English
a monetary unit equal to 1⁄100 of a Danish krone or a Norwegian krone