改 (gǎi): 変える；変更する；変身させる；正す；変える；変更する；正す；矯正する；変身させる；変換する

I want to change my name.

The teacher corrected my homework.

Please change this form.

He changed many bad habits.

This plan needs some changes.

Please correct the mistake.

This room has been converted into a study.

He got rid of his bad habit.

Let's talk another day.