Understanding Korean Superstitions: The Unlucky Number Four
If you're curious about the number that's considered bad luck in Korea, the answer is unequivocally the number **four**. This isn't just a mild dislike; it's a deeply ingrained superstition that affects various aspects of Korean life, from building design to gift-giving.
Why is Four Considered Unlucky? The Sino-Korean Connection
The reason behind the superstition surrounding the number four stems from its pronunciation in Korean. Korean vocabulary has a significant number of words derived from Chinese, and this is where the superstition finds its roots. The Korean word for "four," which is 사 (sa), sounds exactly the same as the Korean word for "death," which is also **사 (sa)**.
This phonetic similarity has led to a widespread belief that the number four carries connotations of death and misfortune. This phenomenon is known as tetraphobia, and it's not unique to Korea. Many East Asian cultures, including China and Japan, share this superstition for the same linguistic reason.
How This Superstition Manifests in Daily Life:
The fear of the number four is so potent in Korea that it actively influences how things are done. You'll notice this in several ways:
- Building Floors: In many Korean buildings, especially apartments and hotels, you will find that the fourth floor is often skipped. Instead of having a floor labeled "4," the numbering might go from 3 to 5. Sometimes, you might see a floor labeled "F" for "four," or the floor will be numbered 3A or 3B, essentially avoiding the problematic digit. This is similar to how some Western buildings skip the 13th floor due to a different superstition.
- Elevator Buttons: Following the logic of skipping floors, elevator panels in Korea will often omit the button for the fourth floor.
- Room Numbers: Hospitals and hotels might avoid assigning room numbers that contain a four, or even rooms that are specifically the fourth room on a floor.
- Gift Giving: When giving gifts, especially in the context of formal occasions or to elders, Koreans will be mindful of the number of items. Giving gifts in sets of four is generally avoided. For example, if you are offering a set of cosmetics, you wouldn't want it to contain four items.
- Product Packaging: While less common now, in the past, you might have seen product packaging that avoided the number four in quantities or in serial numbers.
- Phone Numbers: Some people may actively try to avoid phone numbers that have a preponderance of fours.
"The power of superstition is not in its truth, but in its effect." - Unknown
This avoidance of the number four is a fascinating cultural practice that highlights how language and sound can shape deeply held beliefs and influence everyday decisions.
Are There Other Unlucky Numbers in Korea?
While the number four is the most prominent unlucky number in Korea, the superstition surrounding it is the strongest. However, it's worth noting that some other numbers can carry negative connotations, though to a lesser extent:
- The number Thirteen (13): Similar to Western cultures, the number thirteen can also be considered unlucky by some Koreans, though its influence is not as pervasive as that of the number four. This is largely a Western influence that has seeped into Korean culture.
What About Lucky Numbers?
On the flip side, some numbers are considered lucky in Korean culture:
- The number Eight (8): The number eight is considered very lucky in Korea. This is also due to its pronunciation in Korean, which sounds similar to the word for "wealth" or "fortune." Therefore, you might find the number eight appearing in lucky charms, phone numbers, and even the addresses of businesses hoping to attract prosperity.
- The number Seven (7): The number seven is also generally considered a lucky number, often associated with good fortune and harmony.
It's important to remember that superstitions are cultural beliefs and can vary in intensity among individuals. While the fear of the number four is widespread, not everyone in Korea adheres to these beliefs with the same fervor.
Frequently Asked Questions About Korean Superstitions
How does the superstition of the number four affect Korean businesses?
Korean businesses, especially those dealing with the public like hotels and apartment developers, often take the superstition surrounding the number four very seriously. They will actively avoid using the number in floor designations, room numbers, and sometimes even product quantities to avoid alienating customers who believe it brings bad luck.
Why is the number four considered unlucky in Korea?
The number four is considered unlucky in Korea because its pronunciation, "sa," is identical to the Korean word for "death," also pronounced "sa." This phonetic similarity has led to a strong cultural association between the number four and misfortune or death.
Does everyone in Korea believe the number four is unlucky?
While the superstition surrounding the number four is widespread and deeply ingrained in Korean culture, not everyone believes it with the same intensity. Younger generations may be less affected by such superstitions compared to older generations. However, it's still a significant cultural practice that impacts many aspects of daily life.

