i Register
In some senses, rial is marked as historical. Watch for register when choosing this word.
noun
The official currencies of Iran, Oman, and Yemen.
That year [2012], Iran was cut off from the Swift global payment system. The rial devalued, inflation soared, investment declined and Iranians felt worse off—the same ailments that have helped ignite the past two weeks of protests.
A former currency of Morocco and Tunisia
An old gold coin of England.