The kanji 痛 primarily signifies "pain," "ache," or "to hurt." It describes a physical sensation of discomfort or suffering. This can range from a minor inconvenience to a severe, debilitating condition. It can also be used metaphorically to express emotional pain or distress.

・On-yomi (音読み): ツウ (tsuu) ・Kun-yomi (訓読み): いた(い) (itai), いた(む) (itamu)

⚫︎頭痛 (ずつう) Translation: Headache ⚫︎お腹が痛い (おなかがいた(い)) Translation: My stomach hurts. ⚫︎心の痛み (こころのいた(み)) Translation: Emotional pain; heartache

The kanji 痛 is a phono-semantic compound (形声文字, keisei moji). It combines two components: the radical 疒 (やまいだれ, yamaidare) on the left, which signifies "sickness" or "disease," and 甬 (よう, yō) on the right, which provides the sound element. The combination visually suggests the sensation of pain as a physical ailment. The original meaning evolved from a pain related to illness. The sound element 甬 (yō) contributes the sound to the character's pronunciation, which in turn conveys the "pain" caused by illness or injury. The radical 疒 (yamaidare) provides semantic indication.