酢

Kanji: 酢
Level: N2
Meaning: vinegar
On'yomi: サク, ス
Kun'yomi: す
Strokes: 12
Common compounds: 酢 (す) vinegar 酢の物 (すのもの) vinegar dish
Memory hook: Alcohol/sake (酉) left yesterday (昨) becomes sour vinegar.