Many hospitals and hotels in China don't label the 4th floor of their buildings because the pronunciation of "four" is too close to that of "death" in Chinese.
Many hotels and hospitals in China don't label the fourth floor. Why? The pronunciation of "four" is close to that of "death" in Chinese.
If you use the number four on happy occasions such as wedding, especially in the southern part of China or in the countryside, you are likely to be criticized behind your back for failing to understand basic manners