治る
なおる (naoru)
to heal, to get better, to be cured
verb (godan)
Example
風邪が治ったので、明日から学校に行けます。
かぜがなおったので、あしたからがっこうにいけます。
Kaze ga naotta no de, ashita kara gakkou ni ikemasu.
Since my cold got better, I can go to school starting tomorrow.
This intransitive verb is commonly used for illness recovery, wound healing, or when something broken gets fixed naturally. Often paired with 直す (naosu), its transitive counterpart meaning 'to fix/cure something'.