…the analysis of a person’s speech or writing, especially to assist in identifying or characterizing an individual or particular subgroup…
…of or at a stage before the development of language (by the human species) or the acquisition of speech (by a child)…
…relating to or denoting paralanguage or the non-lexical elements of communication by speech…
…a person’s subconscious knowledge of the rules governing the formation of speech in their first language…
…an individual’s use of a language, i.e. what a speaker actually says, including hesitations, false starts, and errors…
