PHATIC LANGUAGE: The utterance of a phatic expression is a kind of speech act.
In Roman Jakobson's work, 'Phatic' communication is that which concerns the channel of communication, for instance when one says "I can't hear you, you're breaking up" in the middle of a cell phone conversation. In the modern context, this usage appears in online communities and more specifically on micro-blogging.
FORMALITY: A formality is an established procedure or set of specific behaviors and utterances, conceptually similar to a ritual although typically secular and less involved. A formality may be as simple as a handshake upon making new acquaintainces in Western culture to the carefully defined procedure of bows, handshakes, formal greetings, and business card exchanges that may mark two businessmen being introduced in Japan
DEIXIS: refers to words and phrases that cannot be fully understood without additional contextual information. Words are deictic if their semantic meaning is fixed but their denotational meaning varies depending on time and/or place.
PRONOUN: In linguistics and grammar, a pronoun is a word or form that substitutes for a noun or noun phrase. It is a particular case of a pro-form.
CONTEXT DEPENDENT: Those aspects of a text whose meanings depend on an understanding of the circumstances in which it has been produced.
CONTEXT INDEPENDENT: the words WHILE and IF and the order of the expressions that follow are permanently defined by the language itself. They always mean the same thing regardless of where they are found. They are context-independent.
LOCUTION: A word or phrase, esp. with regard to style or idiom or
A person's style of speech his impeccable locution
ILLOCUTION: an act of speaking or writing which in itself effects or constitutes the intended action, e.g. ordering, warning, or promising. Compare with perlocution.
PERLOCUTION: an act of speaking or writing which has an action as its aim but which in itself does not effect or constitute the action, for example persuading or convincing. Compare with illocution.
CULTURAL ASSUMPTIONS: Cultural assumptions are an important aspect of understanding context. Culture is a system of beliefs, customs (usual habits and practices), values, attitudes and lifestyles of a particular people. Culture can refer to groups of people such as nations or more specific groups such as sporting teams.
PRAGMATICS: a subfield of linguistics which studies the ways in which context contributes to meaning. Pragmatics encompasses speech act theory, conversational implicature, talk in interaction and other approaches to language behaviour in philosophy, sociology, linguistics and anthropology