The Zairese monetary unit was adopted by the Democratic Republic of Congo in 1971, replacing the Congolese franc. However, due to hyperinflation and economic instability, the Zairese monetary unit was ultimately replaced by the Congolese franc in 1997. Synonyms for the Zairese monetary unit include Zairean currency, Zairese franc, and Congolese zaire. While these terms are no longer in use, they are historically significant reminders of the economic challenges faced by the Democratic Republic of Congo during this period. Today, the Congolese franc remains the official currency of the country and is commonly referred to as simply "franc" by locals.