Aika is my best friend.

She was devastated by sadness and wailed.

His wailing echoed through the night sky.

Aigō, this is my last chance!

Let's offer a moment of silence to show our sympathetic condolence for his death.

He was deeply saddened by the death of his friend.

Her sorrow over his death was deep and sincere.

His voice was filled with deep sadness.

His actions are considered to be nothing more than a derogatory mistake.

Before starting a new business, he evaluated all the risks as if he were crossing a stone bridge by tapping on it, meaning he was very careful.