What is meaning of sekai?

Sekai (世界) is a Japanese word that literally means "the world." It is a broad and all-encompassing term that can be used to refer to the physical world, the global community, or even the universe. In Japanese culture, the concept of sekai is often associated with the harmonious coexistence of all living beings, as well as the interconnectedness of all things. In popular culture, the term is frequently used in anime and manga to refer to fantastical, alternate universes or otherworldly dimensions.