The kanji 辛 primarily conveys the meanings of "bitter," "spicy," "harsh," or "suffering." It often suggests a difficult, unpleasant, or painful experience, whether physical or emotional. It can also refer to something that is pungent or sharp in taste or character.

・On-yomi (音読み): シン (shin) ・Kun-yomi (訓読み): から(い) (kara(i))

⚫︎ 辛い食べ物 Translation: Spicy food ⚫︎ 辛抱強い Translation: Patient; persevering ⚫︎ 辛口の評価 Translation: Harsh/severe criticism

The kanji 辛 is a pictograph. Originally, it depicted a sharp tool, like a needle or an awl. This tool could be used for piercing or causing pain, hence the association with bitterness, hardship, and sharpness. Over time, the form evolved from the original pictogram to its current form. It also took on the meaning of "spicy" due to the similar sensation of the sharp tool and the effect of spicy food.