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The number 4 (四, pinyin: sì Cantonese Yale: sei) is sometimes considered an unlucky number particularly in Cantonese because the way it is pronounced in the Cantonese dialect is nearly homophonous to the word "death" (死 pinyin: sǐ Cantonese Yale: séi). The Chinese interpretation of 4 as unlucky is a more recent development, considering there are many examples, sayings and elements of the number 4 considered as auspicious instead in Chinese history. The belief that the number 4 is unlucky originated in Japan, where the Japanese have avoided the number since ancient times. While not traditionally considered an unlucky number, 4 has in recent times, gained an association with bad luck because of its pronunciation, predominantly for the Cantonese. Main article: Tetraphobia Numbers 4, 13 and 14 are omitted in some Chinese buildings. On the other hand, number 3 (三, pinyin: sān Cantonese Yale: sāam) sounds like 散 ( pinyin: sàn Cantonese Yale: saan) which means "to split" or "to separate" or "to part ways" or "to break up with" so it is a bad number too. It's significant since it is one of three important stages in a person's life (birth, marriage, and death). The number 3 (三, pinyin: sān Cantonese Yale: sāam) sounds like 生 ( pinyin: shēng Cantonese Yale: sāang), which means "to live" or "life" so it's considered a good number.
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The number 2 (二, cardinal, pinyin: èr or 兩, used with units, pinyin: liǎng) is most often considered a good number in Chinese culture. For example: November 11 is the Singles' Day in China, as the date has four ‘1’ which stand for singles.
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But it can also symbolize loneliness or being single. It is a number given to winners to indicate the first place. The number 1 (一, pinyin: yī Cantonese Yale: yāt) is neither auspicious nor inauspicious. The number 0 (零, pinyin: líng) is the beginning of all things and is generally considered a good number, because it sounds like 良 (pinyin: liáng), which means 'good'. These traditions are not unique to Chinese culture, with other countries with a history of Han characters also having similar beliefs stemming from these concepts.
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The numbers 2, 3, 6, and 8 are generally considered to be lucky, while 4 is considered unlucky. Some numbers are believed by some to be auspicious or lucky (吉利, pinyin: jílì Cantonese Yale: gātleih) or inauspicious or unlucky (不吉, pinyin: bùjí Cantonese Yale: bātgāt) based on the Chinese word that the number sounds similar to.
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