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.
The weak dollar progressed, and the prices of imported goods rose.
Thanks to the weak dollar, exports from Japan increased.
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.