Orwell constructed an alternative future in his vision of the totalitarian state, Nineteen Eighty-Four .  The work has given English a small lode of  the title itself connotes a society marked by government terror and propaganda destroying the public's consciousness of reality (the OED Supplement also accepts 1984 and 1984-ish as adjective forms); that government's official language, Newspeak , now indicates the propagandistic or ambiguous language of, among others, politicians, bureaucrats, and broadcasters ( revenue enhancement  for  tax increase,  etc.); the twisting of minds to the capacity to accept the validity of utterly contradictory opinions or beliefs, or double-think ; the book's head of state, Big Brother , implies an apparently benevolent, but really ruthless, omnipotent, and omniscient state authority.
Orwell's novel, Nineteen Eight-Four, gave several words to English including 1984, Newspeak, and double-think.