The Chinese are very superstitious about their language. They consider the number 4 unlucky, like 13 in the West. I couldn’t tell you why 13 is unlucky, but every Chinese can tell you that 4 is unlucky because the word for “four,” sì , sounds like the word for “die,” sǐ . People go to great lengths to avoid using four. There is nary a 4th or 14th or 24th floor in any high-rise building. I always looked for, but only very rarely saw, a license plate or even a telephone number containing the number 4.
Conversely, people pay lots of money to secure a license plate or a phone number with the digit 8, because eight, bā , rhymes with fā, as in fā cái, which means “to become wealthy” in Mandarin. The power of 8 drove the opening of the Beijing Olympics into the rainy season, just so they could begin on the auspicious 08/08/08 at 8:08. (It didn’t rain.)
Similarly, you should never give a clock as a wedding present, because the word for “clock,” zhōng , sounds the same as the word for “end,” zhōng