The document discusses structuralism in linguistics, focusing on concepts introduced by Ferdinand de Saussure. It defines structuralism and outlines Saussure's key ideas, including that language is a system of signs composed of a signifier and signified. Saussure saw languages as being governed by their own internal rules rather than mirroring the external world. He also distinguished between langue (the system of a language) and parole (individual instances of language use).