Basic Assumptions
1. Cultures are formed through language. Language is public, social, and communal, not private or personal. (If anyone used a private language, it would be very uninteresting to the rest of the world.)
2. Users of a common language form what is called a "speech community," though we use "speech" in this context to include many kinds of communication communities (subcultures, dialects, ethnic groups, social-class specific communities, etc.); any individual can participate in multiple "speech communities".
3. Language is a system with rules (its own internal structure). Language as a system is multi-leveled, from speech sounds, words, and sentences to longer units called discourse. Discourse circulates through a culture, providing meanings, values, and social identities to individuals.
4. Discourse is the level studied by most cultural theory and semiotics. All of our cultural statements--from "mainstream" and official "high culture" products to popular culture genres and emerging new cultural forms--can thus be studied as forms of discourse, parts of a larger cultural "language."
5. Communication and meaning are formed by mediations--representive or symbolic vehicles that "stand for" things, meanings, and values. The mediating vehicles are called "signs". For example, words in a language, images, sounds, or other perceptible signifiers.
5.1. Thus signs and sign-systems never present a copy of "reality"--the order of things external to language and our mediated way of knowing things--but a socially interpreted and valued representation.
6. The study of how a society produces meanings and values in a communication system is called semiotics, from the Greek term semion, "sign". (Here "sign" has a specialized meaning, referring to our social and cultural vehicles for signification or meaning.) Languages, and other symbolic systems like music and images, are called sign systems