To hurt or ache; to feel pain in some part of the body (e.g., headache, toothache).
昨日から頭がずっと痛む。
My head has been hurting since yesterday.
冷たい飲み物を飲んだら歯が痛んだ。
My tooth hurt when I drank something cold.
運動の後で太ももが痛んでいる。
My thigh is aching after exercise.
To be injured or spoiled/damaged (e.g., food going bad, objects getting damaged); to be harmed.
魚が長く置いてあったので傷んでしまった。
The fish spoiled because it was left out too long.
古い本は湿気で傷みやすい。
Old books are easily damaged by humidity.
転んで膝を痛め、しばらく歩くのが痛んだ。
I hurt my knee when I fell, and it has been painful to walk for a while.