In geomorphology, an antidune is a special type of sand dune that forms on the downstream side of a water flow.

He started walking around the room in an anticlockwise direction.

Retroflex sounds are difficult to pronounce.

He deeply studied the history of anti-Semitism.

We should always remember the power of Kannon in difficult times.

He is the type of person who understands ten from hearing one.

It is important to distance yourself from antisocial forces.

I have been to Zhangjiakou.

Kazue is my best friend.

He is secretly active as a hentai manga artist.