Why Chinese Buildings Skip the 4th Floor and People Pay Extra for Phone Numbers with 8s
Step into an elevator in basically any Chinese building and look at the floor buttons. You will see 1, 2, 3, 5, 6. Floor 4 is missing. Not "renamed" — just gone. The building physically has a fourth floor, but nobody calls it that. It is labeled 3A or 5 or simply skipped in the numbering. This is not a quirk of one building. This is nationwide.
The reason: 四 (sì, four) sounds like 死 (sǐ, death). That's it. One syllable of phonetic similarity, and an entire nation rearranges its architecture around it. Hospitals especially avoid the number 4. You will almost never see a Room 4 or Bed 4 in a Chinese hospital, because patients already worried about their health do not need the additional stress of lying in the death-number room.
The 8 economy is real money
At the opposite end of the superstition spectrum is 8 (八 bā), which sounds like 发 (fā), meaning prosperity or wealth. The number 8 is so desirable that people pay serious money for it. Phone numbers ending in 88888 have sold for over $30,000 at auction. License plates with multiple 8s can cost more than the car they're attached to. In 2016, a license plate reading "88888" sold in Guangdong for over $200,000.
The 2008 Beijing Olympics opened on 8/8/08 at 8:08 PM. This was not a scheduling coincidence. The Chinese government deliberately chose the most auspicious possible date and time. It would have been stranger if they hadn't.
The other numbers matter too
6 (六 liù) sounds like 溜 (liū), meaning smooth or skilled. 666 in Chinese internet slang means "nice" or "smooth" — the exact opposite of its Western meaning as the number of the beast. A Chinese gamer seeing "666" in chat is receiving a compliment. A Western gamer seeing the same thing thinks they're being invoked by Satan. Same number, opposite meanings.
9 (九 jiǔ) sounds like 久 (jiǔ), meaning long-lasting. It's popular for weddings and romantic gestures. 520 (五二零 wǔ èr líng) sounds like 我爱你 (wǒ ài nǐ, "I love you") and has become an unofficial Valentine's Day — May 20th (5/20) is now a major date for proposals and weddings across China.
2 (二 èr) by itself is fine, but 250 (二百五 èrbǎiwǔ) is an insult meaning "idiot." The origin is obscure — some say it comes from an old unit of currency, others from a story about a scholar who faked his own death. Nobody is entirely sure, but everyone agrees you should never give 250 yuan as a gift.
Western numerology assigns meanings to numbers through mysticism and biblical references. Chinese number superstition is almost entirely phonetic — it's a giant nationwide pun that everyone agreed to take seriously. Once you understand that, the whole system makes a weird kind of sense.