A more thorough explanation:

Definition: Jus et norma loquendi is a Latin phrase that means "the law and rule of speech." It refers to the idiomatic language, including speech and pronunciation, that is established by the custom of a particular nation.

Examples:

• In the United States, the jus et norma loquendi for English includes pronouncing the "r" sound at the end of words like "car" and "far."
• In France, the jus et norma loquendi for French includes the use of nasal vowels, such as in the word "vin" (wine).

These examples illustrate how the jus et norma loquendi can vary from country to country and even within different regions of the same country. It is important to understand and respect these customs when communicating with people from different backgrounds.