How to define advertising illegality? Which words can't be used in advertising language?

Whether an advertisement is suspected of breaking the law is usually defined by laws and regulatory agencies, and the laws and regulations of different countries and regions may be different. But generally speaking, the following circumstances may make advertisements suspected of breaking the law:

False advertising: advertisements containing false information, such as false product statements, false price or effect promises, may be considered illegal.

Insulting or discriminatory advertisements: Advertisements containing insulting, discriminatory and offensive remarks or images may be regarded as illegal advertisements because they may cause social dissatisfaction or legal problems.

Deceptive advertisements: The information in advertisements may mislead consumers, for example, by misleading pictures or words, making consumers make wrong purchase decisions.

Unauthorized use of intellectual property rights: the use of unauthorized trademarks, patents or copyrights in advertisements may infringe intellectual property rights, which is also illegal.

False certification or approval: If an advertisement claims to have obtained false approval, approval or certification, it may be considered illegal.

False statement: It may be considered illegal to claim that the product has the efficacy that has not been scientifically proved, or to publicize the health effect of the product without sufficient scientific basis.

Invasion of privacy: Advertising may invade personal privacy, such as unauthorized collection or release of personal information.

As for which words cannot be used in advertising language, they are usually restricted by national and regional laws and regulations. Generally speaking, the following types of words or expressions may be restricted:

False or exaggerated propaganda: exaggerated facts or false propaganda words cannot be used.

Medical and health field: In the medical and health field, advertisements may be subject to special supervision, and unapproved medical statements cannot be used.

Discriminatory words: insulting, discriminatory or offensive words are not allowed.

Invasion of privacy: Advertising shall not infringe personal privacy or violate data protection laws and regulations.

Unauthorized brand: Unauthorized trademarks or brand names cannot be used.

The most important thing is to abide by the advertising laws and regulations of the country or region where you are located, and ensure that the advertisements are legal and compliant. If in doubt, it is recommended to consult a legal professional or advertising legal adviser for detailed guidance.