薬

A substance that has a beneficial effect in improving or maintaining one's health.

(figuratively) Something that has a beneficial effect in correcting one's mistakes.

Gunpowder (from the “mystical substance” sense, and the second character in the word 火薬 (kayaku, “gunpowder”)).

A substance with mystical properties, especially one that has an effect on the body, health, or lifespan.

A chemical, generally toxic and used for its effect on living organisms, such as insecticide or herbicide.

Short for 釉薬 (uwagusuri): A glaze or enamel applied to ceramics.

(figuratively) A small bribe.

A medicine or drug, a pharmaceutical.