The task is to identify the word that is dissimilar in a set of alternatives. The given options are:

• Rupee
• Pound
• Yen
• Currency

To solve this, we need to recognize a pattern or commonality among the options. Upon analysis:

• Rupee: A unit of currency used in India and other countries.
• Pound: A unit of currency used in the UK and some other territories.
• Yen: A unit of currency in Japan.
• Currency: A general term referring to a system of money in circulation within a country or economy.

Explanation: The first three options (Rupee, Pound, Yen) are specific units of currency for particular countries. The fourth option, 'Currency', is a general term that encompasses all forms of money. Therefore, 'Currency' is the odd one out as it does not specify a particular type or form of monetary unit like the others.

Conclusion: The odd word from the given alternatives is Currency.