Avoid words with earth attributes.
Because the five-element attribute of the word "Wan" is wood, and according to the principle that the five-element wood subdues the earth, it is taboo to name the word "Wan" with the five-element element "earth".
Secondly, it is taboo to name the character "耀" with the same rhyme final ǎn or the same rhyme as "ǎn", which makes the pronunciation difficult to pronounce and lacks a sense of rhythm.
In addition, it is taboo to name the child with the same character as the ancestor. If the ancestor's name contains the character "耀", the younger generation is taboo to be named with the character "耀".