Colloquialism (also called colloquial language, colloquial speech, everyday language, or general parlance) is the linguistic style used for casual and informal communication. It is the most common form of speech in conversation among persons in friendship, familial, intimate, and other informal contexts.[1] Colloquialism is characterized by the usage of figurative language, contractions, filler words, interjections, and other informalities such as slang.
In contrast to formal and professional communications, colloquial speech does not adhere to grammar and syntax rules and thus may be considered inappropriate and impolite in situations and settings where etiquette is expected or required. It has a rapidly changing lexicon and can also be distinguished by its usage of formulations with incomplete logical and syntactic ordering.[2][3][4][5]
{{cite book}}
: CS1 maint: location missing publisher (link)