5 words with inappropriate names: bad, rape, killing, captive, table, bed, nose, foot, dog, bear, pig, monkey, National Day, and so on.
there are five principles and six taboos in naming. There are five names, faithfulness, righteousness, image, falsehood and class. Take the famous students as the letter and the moral life as the righteousness. Take class life as an image, take things as false, and take them from the father as a class. Not by the country, not by officials, not by mountains and rivers, not by hidden diseases, not by animals, not by money.
expanding information
five principles: faithfulness, righteousness, classification, falsehood and iconicity. The letter is named after the special mark born at birth; Righteousness is named after the auspicious phenomenon at birth; Elephants are named after similar things; False can pretend to be the name of everything; A class can take a name similar to its father.
six taboos: you can't use the name of the country; Not in the name of official position; Not in the name of mountains and rivers; Not in the name of hidden diseases; Not in the name of animals; You can't live by money. Otherwise, it will cause a lot of inconvenience. For example, the name "Situ" of Nuo Hou in the State of Jin abolished the official name of Situ, the name "Sikong" of Song Wugong abolished the official name, and the name "Ju" of Lu and "Ao" of Wu Gong abolished the mountain names of Ju and Ao Er Mountain.
Reference: People's Daily Online-Naming without uncommon words
Reference: People's Daily Online-Ancient people named their names: Zhou people summed up five principles and six taboos.