1Black vinegar (often made from unpolished rice) — a dark, aromatic vinegar used in cooking and as a health drink.
健康のために毎朝黒酢を水で薄めて飲んでいる。
I dilute black vinegar in water and drink it every morning for my health.
黒酢を使ったドレッシングはサラダに合う。
A dressing made with black vinegar goes well with salads.
この店の黒酢はまろやかな酸味が特徴だ。
The black vinegar at this shop is characterized by a mellow acidity.
2A type of seasoning made by charring and grinding kelp or shiitake mushrooms and mixing with vinegar — used as a dressing for raw fish and vegetables in some preparations.
刺身には黒酢（昆布と椎茸を焦がして作ったもの）を少しつけて食べることがある。
Sometimes sashimi is eaten with a little black vinegar (made by charring kelp and shiitake).
この郷土料理のタレは黒酢がベースになっている。
The sauce for this local dish is based on black vinegar.