weak dollar; cheap dollar
Refers to a situation where the US dollar is weak relative to other currencies, especially the yen. Commonly used in economic news.
ドル安が進んで、輸入品の価格が上がった。
The weak dollar progressed, and the prices of imported goods rose.
ドル安のおかげで
Thanks to the weak dollar, exports from Japan increased.
strong yen, weak dollar; appreciation of the yen against the dollar
Compound of ドル (dollar) and 安 (cheap/weak). A straightforward economic term formed by analogy with other currency strength terms like 円高 and 円安.