franc

This term refers to a specific unit of currency and is used in a technical, financial context. While the French franc was replaced by the euro in 2002, the word remains active in contemporary usage regarding the Swiss franc and various CFA francs used across Africa.

As a currency unit, it follows standard English countability rules for money, where it is treated as a countable noun when referring to individual units of currency (e.g., ten francs) but can function as an uncountable concept when discussing the currency as a whole system.