"귀" (pronounced "gwi") is the Korean word for "ear." It is a vital organ in the human body responsible for hearing and balance. The ear consists of three main parts: the outer ear, middle ear, and inner ear. Each part plays a crucial role in capturing sound waves and transmitting them to the brain. In addition to hearing, the ear helps maintain balance through the vestibular system located in the inner ear. This system detects changes in head position and movement, allowing the body to respond accordingly. Proper ear health is essential for effective communication and overall well-being.