tetraphobia
noun [ U ] uk/ˌtet.rəˈfəʊ.bi.ə/ us/ˌtet.rəˈfoʊ.bi.ə/ (also quadrophobia)
恐四症/四的禁忌
fear of the number four
Tetraphobia is mainly suffered in China, Vietnam, Korea, Japan, because the word for the number four is similar to the word for death in their languages. 恐四症主要在中国、越南、韩国、日本为害，因为数字四这个词与他们的语言中死亡这个词相似。
Tetraphobia results in many people avoiding referring to 4 in phone numbers and so on. 恐四症导致许多人避免在电话号码中提及4，在其他场合也是这样。
- More examples
- Tetraphobia is fairly common throughout China, Japan, Korea, Vietnam, Taiwan, Singapore, and Malaysia.
- Tetraphobia affects the way business is done in some countries.
- He wrote an article on tetraphobia entitled, "Nothing to fear, but four itself".