Depreciation or weakening of the Japanese yen; a state where the yen's exchange rate falls relative to other currencies.
円安が進めば輸入品の価格が上がる可能性がある。
If the yen continues to weaken, imported goods may become more expensive.
円安で輸出企業の業績が改善した。
Exporting companies' performance improved because of the weak yen.
為替市場の動きで円安が一時的に止まった。
The depreciation of the yen temporarily halted due to movements in the foreign exchange market.