The taboos in naming the character Yun are:
1. The five elements of the character Yun are earth. According to the principle that earth overcomes water in the five elements, it is taboo to name the character Yun with characters belonging to the five elements of water. Name it.
2. It is taboo to name the word "Yun" with a word that has the same rhyme as ǔn or a word that has the same rhyme and a rising tone. Otherwise, you will find it difficult to read smoothly and difficult to pronounce.
3. Another taboo in naming with the word "Yun" is that if someone in your family already has the word "Yun", you should not use the word "Yun". This is also the most common common sense in naming.
I hope the above information is helpful to you. If you have any other questions, please let me know.