The document discusses language as a semiotic system. It begins by defining language according to various linguists as a system of symbols used for human communication. It then outlines the key elements of language including phonetics, phonology, syntax, semantics, and phonemes. The document defines semiotics as the study of signs and sign processes in communication systems. It discusses some of the key theorists in semiotics, focusing on Charles Sanders Peirce's triadic theory of signs involving a sign, object, and interpretant. The document also outlines Ferdinand de Saussure's distinction between signifier and signified in linguistic signs.