Do you understand the necessity of this project?

That information is unnecessary.

That information is completely unnecessary.

He thinks that war is a necessary evil.

Listening to his story, I laughed out loud.

His name is rare, you don't hear it often.

The chrysanthemum flower is a symbol of autumn.

Kiku is my best friend.

I like cooking edible amaranth.

He raised his head and looked at the sky.