He chose suicide.

She chose death with dignity.

You can defeat this monster with a one-hit kill.

He was surprised to find a dead body.

He said we must not forget the lesson of 'The prosperous will inevitably decline.'

He chose euthanasia to be freed from the pain of his illness.

He died from overwork.

Yoroshiku, please do your best to pass the exam tomorrow.

He decided to apply euthanasia to his sick dog.

The deathwatch beetle is known for eating wood.