to kill oneself · to commit suicide · to attempt suicide

This is the room where the author killed himself.

In adolescence, I hated life and was continually on the verge of suicide, from which, however, I was restrained by the desire to know more mathematics.

Tom confided in his friend that he was going to hang himself.

Jiang Feng escaped and afterwards Yuenu gave birth to two boys, but the 12 zodiacs had been lying in wait and ambushed them. Suddenly two princesses from Yihua Palace appeared. They made Yuenu kill herself, and shortly after, Jiang Feng committed suicide.

He committed suicide.