structural

Selfie - sociocultural phenomenon - taking picture of oneself becomes normative - self-portrait - clipping of the Noun Phrase "self-portrait" into "selfie".

the abstract, grammatical characterization of systems of sounds or signs.

information and meaning

International Phonetic Alphabet

the process by which humans acquire the capacity to perceive and comprehend language, as well as to produce and use words and sentences to communicate.

a sound or a group of different sounds perceived to have the same function by speakers of the language or dialect in question.

functional

Language in relation to social factors, including differences of regional, class, and occupational dialect, gender differences, and bilingualism.

In the most general term, language is a set of symbols used to refer to different objects/ situation, whose meaning is understood by the involved parties.

a branch of linguistics studying the human speech, It is concerned with the physical properties of speech sounds or signs (phones.

Dialects: 1 language, 1 group of speakers, different internal structures of language. Accents: Heavily deals with pronunciation, signals the speakers' origin

the ARBITRARINESS nature of language