Register (sociolinguistics)

In sociolinguistics, a register is a variety of language used for a particular purpose or particular communicative situation. For example, when speaking officially or in a public setting, an English speaker may be more likely to follow prescriptive norms for formal usage than in a casual setting, for example, by pronouncing words ending in -ing with a velar nasal instead of an alveolar nasal (e.g., walking rather than walkin), choosing words that are considered more formal, such as father vs.

Source: Wikipedia — Register (sociolinguistics) (CC BY-SA 4.0)