noun
franc
FRANK/fræŋk/
A monetary unit used now or formerly in several countries.
The silver coin bears a denomination of one franc.

Etymology
The French coin name is said to reflect the inscription “King of the Franks” on early gold coins. A coin’s name thus became the name of a monetary unit.
In context
worth more than its original face value today? This classic French coin comes from the period of the French franc
More examples
- She exchanges her dollars for Swiss francs.
- France used francs before adopting the euro.
- This coin is worth one Swiss franc.
Forms
franc · francs