The kanji 炊 (sui) fundamentally means "to cook" or "to boil" something, especially using heat. It implies the process of preparing food by applying heat, often with water, to soften or make it edible. The core concept is about transforming raw ingredients into cooked food.

・On-yomi (音読み): スイ (sui) ・Kun-yomi (訓読み): た（く） (ta(ku))

⚫︎炊飯器 Translation: rice cooker ⚫︎炊事 Translation: cooking; culinary activities ⚫︎自炊する Translation: to cook for oneself

The kanji 炊 is a phono-semantic compound (形声文字). The left side, 火 (fire, ka), acts as the semantic component, indicating the element of heat or fire involved in cooking. The right side, 欠 (ketsu), acts as the phonetic component, providing a sound clue. This composition suggests the act of cooking using fire. The character developed over time from earlier forms depicting fire over a pot, simplifying and combining the elements.