Back vowels are vowels that are pronounced using the back of the tongue.

Postfix notation is one method of expressing calculations.

The Kokin Wakashū is the second collection of the Chokusen Wakashū.

Tokudaiji Sanesada, also known as Goto Tokudaiji Sadaijin, was a court noble and a literary person during the Heian period.

He is doing special exercises to strengthen his tibialis posterior muscle.

Strengthening the occipitalis muscle can reduce neck pain.

An abnormality was found in his occipital lobe.

The Fudo Myoo, also known as Acala, is known as a guardian deity in Buddhism.

My younger brother is diligently practicing Taekwondo every day.

He emphasized that there is still much to do, saying 'It's a long road ahead as the sun sets.'