Pleonasm is the use of more words than are necessary to express an idea; redundancy.

The term leet is derived from the word elite. The leet alphabet is a specialised form of symbolic writing. 

The Press Council of India is a statutory body in India that governs the conduct of the print media.

Basic English is an English-based controlled language created by linguist and philosopher Charles Kay Ogden as an international auxiliary language.

Speech also contains non-verbal elements known as para language, e.g. rhythm, intonation, tempo and stress. 

Logic is the branch of philosophy concerned with the use and study of valid reasoning.

A pasigraphy is a writing system where each written symbol represents a concept.

Cuneiform script is one of the earliest systems of writing, distinguished by its wedge-shaped marks on clay tablets.

Depending on philosophical perspectives regarding the definition of language and meaning, when used as a general concept, language may refer to the cognitive ability to learn and use systems of complex communication.

A lingua franca, also known as bridge language, common language, trade language or vehicular language, is a language or dialect systematically  used to make communication possible between people who do not share a native language or dialect.

Semiotics represents a methodology for the analysis of text regardless of the medium in which it is presented. 

To hear something through the grapevine is to learn of something informally and unofficially by means of gossip or rumour.

Intrapersonal communication is a communicator's internal use of language or thought. It can be useful to envision intrapersonal communication occurring in the mind of the individual in a model which contains a sender, receiver and feedback loop.

Folk linguistics is the amateur study of linguistics. 

A lucid dream is any dream in which one is aware that one is dreaming.

A phonemic orthography is an orthography (system for writing a language) in which the graphemes (written symbols) correspond to the phonemes (significant spoken sounds) of the language.

Pragmatics encompasses speech act theory, conversational implicature, talk in interaction and other approaches to language behaviour in philosophy, sociology, linguistics and anthropology.