Noun
foreign currency (countable and uncountable, plural foreign currencies)
(banking, finance) Any currency that is in use in a foreign nation, and an authorized medium of circulation and the basis for record-keeping in that nation.
Synonyms: foreign money, foreign exchange, devisen
North Korea desperately needed the foreign currency which this lethal trade could bring; its role as chief 'rogue' reinforced its prestige among anti-Western states, near and far; and it could also hope at the right moment to extort new instalments of Danegeld from America and her allies. Margaret Thatcher