Infrasound is a type of sound that is inaudible to the human ear.

Debuccalization refers to the phenomenon in phonetics where a specific sound is pronounced outside the oral cavity.

Kunminjōon is a book for teaching the correct pronunciation of Hangul.

This basin was used in ancient washrooms.

He was punished for his actions.

He was arrested for obstruction of public duties.

He is facing many difficulties due to gender identity disorder.

He is receiving treatment for obsessive-compulsive disorder.

His father fell into a persistent vegetative state due to a traffic accident.

Mr. Okuda is an insurance sales representative.