He has prosopagnosia, which makes it very difficult to remember faces.

When I come to this place, I feel a sense of déjà vu for some reason.

He is said to have a sharp sixth sense.

Recently, I've been troubled by a severe feeling of residual urine.

In Japanese grammar, postpositions play an important role.

A back vowel is a sound where the back of the tongue approaches the palate.

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.