The term "Lost" or "LOST" serves as a widely used title across an array of arts, entertainment, and media, primarily functioning as a disambiguation for numerous cultural works. Most prominently, it refers to the acclaimed 2004 American drama TV series about plane crash survivors on a mysterious island, though other notable television includes a 2021 South Korean series and various individual episodes. The title also encompasses numerous films, ranging from a 1950 Mexican drama and a 1956 British thriller to a 2023 Indian Hindi-language thriller. In literature, "Lost" appears in Gregory Maguire's 2001 horror novel, Michael Robotham's 2005 novel, and Daniel Mendelsohn's profound 2006 memoir, The Lost: A Search for Six of Six Million. Furthermore, the word is extensively adopted in music, designating bands, albums like Pet Shop Boys' 2023 EP, and a vast collection of songs by diverse artists such as Linkin Park, Frank Ocean, and Coldplay.