noun
high-class sake; top-quality sake
Refers to sake of superior grade, often used in contrast with 並酒 (ordinary sake) or 下酒 (low-grade sake).
この店では上酒だけを扱っています。
This shop deals only in high-class sake.
お祝いには上酒を用意しよう。
Let's prepare top-quality sake for the celebration.