Worlds

Worlds is the plural form of the word world. The term has multiple uses across disciplines and contexts. In general usage, a world can be the Earth, a planet, or any realm of existence or reality that is distinct from others through geography, biology, or culture.

In astronomy, world is commonly used to refer to a planet or other celestial body that could host life or support exploration. Astronomers speak of Earth-like worlds, exoplanets, and the diverse environments found on distant worlds.

In philosophy and cultural studies, world denotes the totality of objects, events, and experiences that constitute a particular perspective. The phrase 'the social world' or 'the world of ideas' reflects how different agents inhabit different contexts and meanings.

In fiction and media, worldbuilding is the process of constructing an imagined universe, including its geography, history, species, and rules of nature. Authors may develop multiple worlds or realms—alternate, parallel, or future settings—to explore different narratives.

In physics and speculative thought, 'worlds' appears in the many-worlds interpretation of quantum mechanics and in multiverse theories, which posit that all possible histories or universes exist as separate branches or domains.

In gaming and digital media, virtual worlds are interoperable spaces created by software where players interact, build, and compete. These worlds range from single-server realms to expansive, cross-platform metaverses.