In Chinese culture there are many things that are considered unlucky. The number 4 is considered unlucky because it sounds very similar to the word 'death'. Because of this the number 4 is usually skipped on lines.
4
Typically numbers with an "8" in it. This is because the Chinese word for 8 sounds similar in pitch with the word "wealthy." Also, 6 and 9 are considered lucky in Chinese culture. On the contrary, the number "4" is unlucky because it sounds similar to the Chinese word for "death."
The number 4
Many people believe the number 13 is unlucky. However, some cultures think of it as lucky. In Italy, I think, the numbers 4 and 17 are considered unlucky, and I think the number 9 in Japan is associated with death. However, numbers like 8 and 328 are considered prosperous in Chinese culture.
The Chinese believe that white is unlucky because it is the color of death.
The number 4 in Chinese is 四, which is pronounced as "Si". This word is rather similar to the word 死, which means death. This is why the number four is considered as a bad omen, or a unlucky number. Some buildings doesn't have the fourth floors, or any floors with the number 4 in it.
In some cultures, the number 666 is considered unlucky due to its association with the biblical "Number of the Beast." In Chinese culture, the number 4 is considered unlucky because it sounds similar to the word for "death." Similarly, in Japanese culture, the number 9 is considered unlucky because it sounds like the word for "pain" or "distress." These superstitions about certain numbers being unlucky are rooted in cultural beliefs and interpretations.
In Chinese and Japanese the pronunciation of the number four is very similar if not identical to the word for "death" (死) and thus is not a very popular to be associated with as it may invite death to the door of the person and their families.
Number 4 is considered unlucky in Chinese because it is homophonous (sounds like) "death" in Chinese. In general numerology, a person with 4 on their charts is considered to be hard-working, salt of the earth, and dependable.
Saying the number 4 is okay on Chinese New Year, but it is considered unlucky by some Cantonese speakers since 4 is called å›› in Chinese and that sounds like æ­», which means death. It's fine with other Chinese who don't speak Cantonese.
Some lucky numbers in Chinese are 8 and 6. The number 4 however is considered very unlucky because its pronunciation, Si is very similar to the Chinese word for death.
You cannot scientifically tell if a number is good or not, but one could assume that it is lucky because they they found 4 two dollar bills or won the lottery wich had all 4's in it. If 4 is a good number, that is up to you. however, the number 4 sounds a lot like death in Chinese and is unlucky in China, which is the reson why it is colored red on a Chinese dice, because the luckyness of the color red counteracts the unluckiness of the number four. In essence 4 is unlucky in China much like 13 is unlucky in the US.