Final answer:
The term 'otaku' refers to individuals with a keen interest in anime, manga, and Japanese culture, often to the extent that it becomes a core part of their identity. It can have different connotations but is commonly used neutrally or positively, especially in cosplay subcultures.
Step-by-step explanation:
The meaning of the word "otaku" is typically associated with individuals who have a passionate interest in and knowledge of anime, manga, and Japanese culture. Originally, the term had a negative connotation in Japan, implying an obsessive fan who is socially inept. However, its contemporary use has become more neutral or even positive among fans outside of Japan. Fans who engage in cosplaying, as a distinct subculture, emulating characters from franchises such as D.C. Comics, may be considered otaku because of their deep interest in the subject matter. While the precise definition can vary, the common thread is a dedication to a specific hobby or entertainment form to an extent that it becomes a significant part of their identity.