Fiction is any creative work, chiefly any narrative work, portraying individuals, events, or places that are imaginary, or in ways that are imaginary. Fictional portrayals are thus inconsistent with history, fact, or plausibility. In a traditional narrow sense, "fiction" refers to written narratives in prose often referring specifically to novels, novellas, and short stories. More broadly, however, fiction encompasses imaginary narratives expressed in any medium, including not just writings but also live theatrical performances, films, television programs, radio dramas, comics, role-playing games, and video games.
Typically, the fictionality of a work is publicly expressed and so the audience expects the work to deviate in some ways from the real world rather than presenting, for instance, only factually accurate portrayals or characters who are actual people. Because fiction is generally understood to not fully adhere to the real world, the themes and context of a work, such as if and how it relates to real-world issues or events, are open to interpretation. Since fiction is most long-established in the realm of literature (written narrative fiction), the broad study of the nature, function, and meaning of fiction is called literary theory, and the narrower interpretation of specific fictional texts is called literary criticism (with subsets like film criticism and theatre criticism also now long-established). Aside from real-world connections, some fictional works may depict characters and events within their own context, entirely separate from the known physical universe: an independent fictional universe. The creative art of constructing such an imaginary world is known as worldbuilding.
Literary critic James Wood argues that "fiction is both artifice and verisimilitude", meaning that it requires both creative inventions as well as some acceptable degree of believability to its audience, a notion often encapsulated in the poet Samuel Taylor Coleridge's idea of the audience's willing suspension of disbelief.