Usually "4" is used to refer to the words "is". For example: 54199: I am your uncle; "14" means "meaning; suspected". Some feudal areas associate the number 4 with the homophonic word for "death", while others associate the number 4 with "getting rich all year round". It’s okay to interpret it as everything going well.

4 is an Internet term. In the new generation of Internet language, people understand 4 as not only 2 but also 2, plus 2 plus 2, and 2 can be understood as "stupid" or "silly". , and 4 sounds like the Chinese word for "death" (especially in Sichuan dialect), so the number "4" is very unlucky and also symbolizes the life moon sect. All additional meanings are subject to each person's personal interpretation.

Extended information:

1, 4 pronunciation: Chinese sì, pronounced the fourth tone, English four. It is a natural number between 3 and 5, a positive integer, an even number, and a rational number. 4 is the smallest composite number among positive integers and is twice the number of 2. It is also a square number.

2 and 4 are just numbers and have no necessarily associated meanings. All additional meanings only lie in everyone’s personal understanding. For example: In ancient Chinese culture, the number four is an auspicious number. There are many words with four in them, such as: four seasons of peace, four generations living under one roof, everything is stable, four happy balls, besieged on all sides, etc. There are many such explanations.

Reference: Baidu Encyclopedia_4