It's scary to walk in a thunderstorm.

In ancient times, people believed that when thunder roared, the gods were angry.

Mr. Kaminari is my best friend.

I woke up last night because of the sound of thunder.

The thunder roared as rarely seen.

I was scared because there was thunder last night.

Have you ever seen a trumpeter swan at the lake in the park?

Mizunari is my best friend.

The syrinx of birds can produce different sounds depending on the species.

My borborygmus was so loud that everyone could hear it during the meeting.