This document discusses several theories related to media language and how meaning is constructed through signs and codes. It covers semiotics, focusing on the work of Ferdinand de Saussure on the distinction between the signifier and signified. It also discusses Roland Barthes' concepts of denotation versus connotation and how audiences interpret meanings. Finally, it outlines Stuart Hall's encoding/decoding model of how media producers encode preferred meanings and how audiences can decode messages in dominant, negotiated, or oppositional ways.