"Colloquialism (/kəˈloʊkwiəˌlɪzm, koʊ-/) – also called colloquial language, everyday language, or general parlance – is the linguistic style used for casual (informal) communication. It is the most common ...
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functional style of speech, the idiom normally employed in conversation and other informal contexts. Colloquialism is characterized by wide usage of interjections and other expressive devices; it makes use of non-specialist terminology, and has a rapidly changing lexicon. It can also be distinguished by its usage of formulations with incomplete logical and syntactic ordering." - (en.wikipedia.org 25.11.2023)