There are several arguments in favor of adding the word "muggle" to the dictionary. First, it is a widely used term in the Harry Potter fandom. The Harry Potter series is one of the most popular book and movie franchises of all time, and the term "muggle" is used throughout the series to refer to non-magical people. As a result, the word has become widely recognized and understood by people all over the world.
Second, the word "muggle" has been used in popular culture in general beyond the Harry Potter fandom. For example, the word has been used in television shows, movies, and books. This suggests that the word is not just a slang term used by a small group of people, but rather a word that is gaining wider acceptance and usage.
Third, the word "muggle" is a descriptive term that can be used to refer to non-magical people in a humorous or lighthearted way. This can be useful in certain contexts, such as in creative writing or comedy.
However, there are also some arguments against adding the word "muggle" to the dictionary. First, it is a slang term and not a formal word. Slang terms are often used informally and are not considered to be part of the standard English language. As a result, some people believe that the word "muggle" should not be added to the dictionary because it is not a formal word.
Second, the word "muggle" can be seen as offensive to some people. The word is derived from the word "mug," which can be used to refer to someone who is stupid or foolish. As a result, some people believe that the word "muggle" is offensive and should not be added to the dictionary.
Ultimately, the decision of whether or not to add the word "muggle" to the dictionary is a matter of editorial discretion. There are valid arguments both in favor of and against adding the word. It is up to individual dictionaries to decide whether or not to include the word based on their own criteria.