foreign exchange market
US /ˈfɔːr.ɪn ɪksˈtʃeɪndʒ ˈmɑːr.kɪt/
UK /ˈfɔːr.ɪn ɪksˈtʃeɪndʒ ˈmɑːr.kɪt/

1.
a global decentralized or over-the-counter market for the trading of currencies
:
•
The foreign exchange market operates 24 hours a day, five days a week.
•
Fluctuations in the foreign exchange market can impact international trade.