Sometimes, irrational things happen in this world.

I'm just amazed at the absurdity of this world.

He is a believer in deism, believing that God created the universe and then left it alone.

Katori is my best friend.

There is a big loquat tree in my garden.

His actions always have a duality.

He holds dual citizenship in America and Japan.

He repelled the enemy using the heavy rattan bow.

Haplology is a part of linguistics, referring to the phenomenon where a part is omitted when the same syllable repeats.

Tritium is one of the radioactive isotopes.